diff --git a/src/img/missingno.png b/src/img/missingno.png
new file mode 100644
index 0000000..ceca1ca
Binary files /dev/null and b/src/img/missingno.png differ
diff --git a/src/scss/sprites.scss b/src/scss/sprites.scss
index 3f72644..ae66d1c 100644
--- a/src/scss/sprites.scss
+++ b/src/scss/sprites.scss
@@ -1,5 +1,17 @@
 $scale: 4;
 
+.pokemon-missing-no {
+  display: inline-block;
+  background: url('../img/missingno.png') no-repeat;
+  width: 84px;
+  height: 195px;
+  image-rendering: -webkit-crisp-edges;
+  image-rendering: -moz-crisp-edges;
+  image-rendering: crisp-edges;
+  image-rendering: pixelated;
+  -ms-interpolation-mode: nearest-neighbor;
+}
+
 // generated by https://css.spritegen.com/
 // sprites from https://pokemondb.net/sprites
 // alolan sprites from https://www.pokecommunity.com/showthread.php?t=368703
diff --git a/src/ts/app/PokemonApp.tsx b/src/ts/app/PokemonApp.tsx
index de1ce09..bcbb905 100644
--- a/src/ts/app/PokemonApp.tsx
+++ b/src/ts/app/PokemonApp.tsx
@@ -32,8 +32,10 @@ class PokemonApp extends React.Component<IConnectedPokemonAppProps> {
 
     public render() {
         const {
-            activePokemonIndex,
+            activePokemonId,
             pokemonList,
+            pokemonListFiltered,
+            filterTerm,
         } = this.props.pokemonSelectListState;
         const {
             individualValues,
@@ -44,9 +46,11 @@ class PokemonApp extends React.Component<IConnectedPokemonAppProps> {
             <div className={ styles.wrapper }>
                 <PokemonSelectList
                     isLoading={ this.props.pokemonSelectListState.isLoading }
-                    activePokemonIndex={ activePokemonIndex }
-                    pokemonList={ pokemonList }
+                    activePokemonId={ activePokemonId }
+                    pokemonList={ filterTerm === '' ? pokemonList : pokemonListFiltered }
+                    filterTerm={ this.props.pokemonSelectListState.filterTerm }
                     handleActivatePokemon={ this.handleActivatePokemon }
+                    handleChangeFilter={ this.handleChangeFilter }
                 />
                 { leaguePokemon !== null &&
                     <PokemonExplorer
@@ -60,13 +64,12 @@ class PokemonApp extends React.Component<IConnectedPokemonAppProps> {
         );
     }
 
-    private readonly handleActivatePokemon = (pokemonIndex : number) => {
-        const { dispatch, pokemonSelectListState } = this.props;
-        const pokemonId = pokemonSelectListState.pokemonList[pokemonIndex].id;
+    private readonly handleActivatePokemon = (pokemonId : string) => {
+        const { dispatch } = this.props;
 
         dispatch(ActionsPokemonSelectList.fetchPokemonLeagueStats(pokemonId))
         .then((leaguePokemon) => {
-            dispatch(ActionsPokemonSelectList.setActivePokemonIndex(pokemonIndex));
+            dispatch(ActionsPokemonSelectList.setActivePokemonId(pokemonId));
             dispatch(ActionsPokemonExplorer.setIvLevel(null));
             dispatch(ActionsPokemonExplorer.setIvHp(null));
             dispatch(ActionsPokemonExplorer.setIvAtk(null));
@@ -81,6 +84,10 @@ class PokemonApp extends React.Component<IConnectedPokemonAppProps> {
         .then(() => dispatch(ActionsPokemonExplorer.setIsLoading(false)));
     }
 
+    private readonly handleChangeFilter = (filterTerm : string) => {
+        return this.props.dispatch(ActionsPokemonSelectList.filterPokemonList(filterTerm));
+    }
+
     private readonly handleChangeIndividualValue = (stat : IndividualValueKey, value : number | null) => {
         const { dispatch } = this.props;
 
diff --git a/src/ts/app/components/PokemonSelectList/PokemonSelectList.tsx b/src/ts/app/components/PokemonSelectList/PokemonSelectList.tsx
index ab7c98a..a96c2d6 100644
--- a/src/ts/app/components/PokemonSelectList/PokemonSelectList.tsx
+++ b/src/ts/app/components/PokemonSelectList/PokemonSelectList.tsx
@@ -12,10 +12,12 @@ import * as styles from './styles/PokemonSelectList.scss';
 
 export interface IPokemonSelectListProps {
     isLoading : boolean;
-    activePokemonIndex : number | null;
+    activePokemonId : string | null;
     pokemonList : Array<IPokemon>;
+    filterTerm : string;
 
-    handleActivatePokemon : (index : number) => void;
+    handleActivatePokemon : (pokemonId : string) => void;
+    handleChangeFilter : (filterTerm : string) => Promise<void>;
 }
 
 interface IState {
@@ -31,6 +33,7 @@ interface IRowFactory {
 }
 
 export class PokemonSelectList extends React.Component<IPokemonSelectListProps, IState> {
+    private listRef : VariableSizeList | null = null;
 
     constructor(props : IPokemonSelectListProps) {
         super(props);
@@ -45,46 +48,86 @@ export class PokemonSelectList extends React.Component<IPokemonSelectListProps,
 
     public render() {
         const { width, height } = this.state.dimensions;
+        const listLength = this.props.pokemonList.length;
+
         const onResize = (contentRect : ContentRect) => {
             if (typeof contentRect.bounds !== 'undefined') {
                 this.setState({ dimensions: contentRect.bounds });
             }
         };
-        const classes = classNames(
-            'nes-container',
+        const wrapperCss = classNames(
             styles.leftPanel,
             {
                 loading: this.props.isLoading,
             }
         );
+        const listWrapperCss = classNames(
+            'nes-container',
+            styles.listWrapper,
+            {
+                [ styles.emptyList ]: listLength === 0
+            }
+        );
+        const inputTextCss = classNames(
+            'nes-input',
+            styles.filterInput
+        );
 
         return (
-            <div id="pokemon-select-list" className={ classes }>
-                <Measure
-                    bounds={ true }
-                    onResize={ onResize }
-                >
-                    {
-                        ({ measureRef }) => (
-                            <div ref={ measureRef }>
-                                <VariableSizeList
-                                    height={ height }
-                                    itemCount={ this.props.pokemonList.length }
-                                    estimatedItemSize={ 25 }
-                                    itemSize={ this.calculateRowHeight }
-                                    width={ width }
-                                >
-                                    { this.rowFactory.bind(this) }
-                                </VariableSizeList>
-                            </div>
-                        )
+            <div id="pokemon-select-list" className={ wrapperCss }>
+                <input
+                    name="filter"
+                    type="text"
+                    className={ inputTextCss }
+                    onChange={ this.handleChangeFilter }
+                    value={ this.props.filterTerm }
+                    placeholder="Pokemon Name"
+                />
+                <div className={ listWrapperCss }>
+                    { listLength > 0 &&
+                        <Measure
+                            bounds={ true }
+                            onResize={ onResize }
+                        >
+                            {
+                                ({ measureRef }) => (
+                                    <div ref={ measureRef }>
+                                        <VariableSizeList
+                                            ref={ this.setListRef }
+                                            height={ height }
+                                            itemKey={ this.getListItemKey }
+                                            itemCount={ listLength }
+                                            estimatedItemSize={ 25 }
+                                            itemSize={ this.calculateRowHeight }
+                                            width={ width }
+                                        >
+                                            { this.rowFactory.bind(this) }
+                                        </VariableSizeList>
+                                    </div>
+                                )
+                            }
+                        </Measure>
                     }
-                </Measure>
+                    { listLength === 0 &&
+                        <div className={ styles.emptyState }>
+                            <i className="pokemon-missing-no" />
+                            <h3>MissingNo.</h3>
+                        </div>
+                    }
+                </div>
             </div>
         );
     }
 
-    private readonly calculateRowHeight = (index : number) => this.props.pokemonList[index].form !== null ? 40 : 25;
+    private readonly setListRef = (element : VariableSizeList) => this.listRef = element;
+
+    private readonly getListItemKey = (index : number) => {
+        return index + this.props.pokemonList[index].id;
+    }
+
+    private readonly calculateRowHeight = (index : number) => {
+        return this.props.pokemonList[index].form !== null ? 40 : 25;
+    }
 
     private rowFactory({ index, style } : IRowFactory) {
         const pokemon = this.props.pokemonList[index];
@@ -92,7 +135,7 @@ export class PokemonSelectList extends React.Component<IPokemonSelectListProps,
         const anchorCss = classNames(
             'list-item',
             {
-                active: this.props.activePokemonIndex === index
+                active: this.props.activePokemonId === pokemon.id
             }
         );
         const dexCss = classNames(
@@ -103,10 +146,10 @@ export class PokemonSelectList extends React.Component<IPokemonSelectListProps,
             'de-emphasize',
             styles.form
         );
-        const onClick = () => this.props.handleActivatePokemon(index);
+        const onClick = () => this.props.handleActivatePokemon(pokemon.id);
         return (
             <a
-                key={ index }
+                key={ index + pokemon.id }
                 style={ style }
                 className={ anchorCss }
                 onClick={ onClick }
@@ -119,4 +162,13 @@ export class PokemonSelectList extends React.Component<IPokemonSelectListProps,
             </a>
         );
     }
+
+    private readonly handleChangeFilter = (event : React.ChangeEvent<HTMLInputElement>) => {
+        this.props.handleChangeFilter(event.currentTarget.value)
+        .then(() => {
+            if (this.listRef !== null) {
+                this.listRef.resetAfterIndex(0, true);
+            }
+        });
+    }
 }
diff --git a/src/ts/app/components/PokemonSelectList/actions.ts b/src/ts/app/components/PokemonSelectList/actions.ts
index c02832a..8cb5a3d 100644
--- a/src/ts/app/components/PokemonSelectList/actions.ts
+++ b/src/ts/app/components/PokemonSelectList/actions.ts
@@ -9,10 +9,37 @@ export const setIsLoading = (isLoading : boolean) => action(PokemonSelectListAct
 
 export const setPokemonList = (pokemonList : Array<IPokemon>) => action(PokemonSelectListActionTypes.SET_POKEMON_LIST, { pokemonList });
 
-export const setActivePokemonIndex = (activePokemonIndex : number | null) => action(PokemonSelectListActionTypes.SET_ACTIVE_POKEMON_INDEX, { activePokemonIndex });
+export const setPokemonListFiltered = (filterTerm : string, pokemonListFiltered : Array<IPokemon>) => action(PokemonSelectListActionTypes.SET_POKEMON_LIST_FILTERED, { filterTerm, pokemonListFiltered });
+
+export const setActivePokemonId = (activePokemonId : string | null) => action(PokemonSelectListActionTypes.SET_ACTIVE_POKEMON_ID, { activePokemonId });
 
 export const setPokemonLeagueStats = (pokemonId : string, pokemonLeagueStats : ILeaguePokemon) => action(PokemonSelectListActionTypes.SET_POKEMON_LEAGUE_STATS, { pokemonId, pokemonLeagueStats });
 
+export const filterPokemonList = (
+    filterTerm : string
+) : ThunkResult<Promise<void>> => {
+    return async (dispatch, getState, extraArguments) => {
+        let pokemonListFiltered : Array<IPokemon> = [];
+        if (filterTerm !== '') {
+            const pokemonList = getState().pokemonSelectListState.pokemonList;
+            const normalizedFilterTerm = filterTerm.toLowerCase();
+            pokemonListFiltered = pokemonList.reduce((result : Array<IPokemon>, pokemon) => {
+                const pokemonName = pokemon.name.toLowerCase();
+                const pokemonDex = '' + pokemon.dex;
+                const pokemonForm = (pokemon.form || '').toLowerCase();
+                if (pokemonName.indexOf(normalizedFilterTerm) === 0 ||
+                    pokemonDex.indexOf(normalizedFilterTerm) === 0 ||
+                    normalizedFilterTerm === pokemonForm
+                ) {
+                    result.push(pokemon);
+                }
+                return result;
+            }, []);
+        }
+        dispatch(setPokemonListFiltered(filterTerm, pokemonListFiltered));
+    };
+};
+
 export const fetchPokemonList = (
 ) : ThunkResult<Promise<void>> => {
     return async (dispatch, getState, extraArguments) => {
diff --git a/src/ts/app/components/PokemonSelectList/reducers.ts b/src/ts/app/components/PokemonSelectList/reducers.ts
index f821fd4..86ded1e 100644
--- a/src/ts/app/components/PokemonSelectList/reducers.ts
+++ b/src/ts/app/components/PokemonSelectList/reducers.ts
@@ -5,10 +5,11 @@ import { IPokemonSelectListState, PokemonSelectListActionTypes } from './types';
 
 export const initialState : IPokemonSelectListState = {
     isLoading: true,
-    activePokemonIndex: null,
+    activePokemonId: null,
     pokemonList: [],
     pokemonListFiltered: [],
-    pokemonLeagueStats: {}
+    filterTerm: '',
+    pokemonLeagueStats: {},
 };
 
 const reduceSetIsLoading = (
@@ -27,12 +28,21 @@ const reduceSetPokemonList = (
     pokemonList: action.payload.pokemonList,
 });
 
-const reduceSetActivePokemonIndex = (
+const reduceSetPokemonListFiltered = (
     state : IPokemonSelectListState,
-    action : ReturnType<typeof Actions.setActivePokemonIndex>
+    action : ReturnType<typeof Actions.setPokemonListFiltered>
 ) : IPokemonSelectListState => ({
     ...state,
-    activePokemonIndex: action.payload.activePokemonIndex,
+    filterTerm: action.payload.filterTerm,
+    pokemonListFiltered: action.payload.pokemonListFiltered,
+});
+
+const reduceSetActivePokemonId = (
+    state : IPokemonSelectListState,
+    action : ReturnType<typeof Actions.setActivePokemonId>
+) : IPokemonSelectListState => ({
+    ...state,
+    activePokemonId: action.payload.activePokemonId,
 });
 
 const reduceSetPokemonLeagueStats = (
@@ -55,8 +65,10 @@ export const PokemonSelectListReducers : Reducer<IPokemonSelectListState> = (
             return reduceSetIsLoading(state, action as ReturnType<typeof Actions.setIsLoading>);
         case PokemonSelectListActionTypes.SET_POKEMON_LIST:
             return reduceSetPokemonList(state, action as ReturnType<typeof Actions.setPokemonList>);
-        case PokemonSelectListActionTypes.SET_ACTIVE_POKEMON_INDEX:
-            return reduceSetActivePokemonIndex(state, action as ReturnType<typeof Actions.setActivePokemonIndex>);
+        case PokemonSelectListActionTypes.SET_POKEMON_LIST_FILTERED:
+            return reduceSetPokemonListFiltered(state, action as ReturnType<typeof Actions.setPokemonListFiltered>);
+        case PokemonSelectListActionTypes.SET_ACTIVE_POKEMON_ID:
+            return reduceSetActivePokemonId(state, action as ReturnType<typeof Actions.setActivePokemonId>);
         case PokemonSelectListActionTypes.SET_POKEMON_LEAGUE_STATS:
             return reduceSetPokemonLeagueStats(state, action as ReturnType<typeof Actions.setPokemonLeagueStats>);
         default:
diff --git a/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss b/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss
index 13fc59c..206252a 100644
--- a/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss
+++ b/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss
@@ -4,10 +4,28 @@
   height: 100vh;
   font-size: 0.8rem;
   flex-basis: 20em;
-  padding: 6px;
+  display: flex;
+  flex-flow: column nowrap;
+  margin-left: 1rem;
 
-  & > * {
-    height: 100%;
+  .listWrapper {
+    flex: 1 1 auto;
+    display: flex;
+    padding: 6px;
+
+    & > * {
+      width: 100%;
+    }
+
+    &.emptyList .emptyState {
+      align-self: center;
+      text-align: center;
+      margin-top: -100%;
+
+      & > *:first-child {
+        margin: 1em auto;
+      }
+    }
   }
 
   a {
@@ -18,6 +36,11 @@
   }
 }
 
+.filterInput {
+  margin-left: 0;
+  margin-right: 0;
+}
+
 .dex,
 .form {
   font-size: 0.8em;
diff --git a/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss.d.ts b/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss.d.ts
index c8db241..58e3d96 100644
--- a/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss.d.ts
+++ b/src/ts/app/components/PokemonSelectList/styles/PokemonSelectList.scss.d.ts
@@ -1,5 +1,9 @@
 // This file is automatically generated.
 // Please do not change this file!
 export const dex: string;
+export const emptyList: string;
+export const emptyState: string;
+export const filterInput: string;
 export const form: string;
 export const leftPanel: string;
+export const listWrapper: string;
diff --git a/src/ts/app/components/PokemonSelectList/types.ts b/src/ts/app/components/PokemonSelectList/types.ts
index 053cf11..86c7d4c 100644
--- a/src/ts/app/components/PokemonSelectList/types.ts
+++ b/src/ts/app/components/PokemonSelectList/types.ts
@@ -2,15 +2,17 @@ import { ILeaguePokemon, IPokemon } from 'app/models/Pokemon';
 
 export interface IPokemonSelectListState {
     isLoading : boolean;
-    activePokemonIndex : number | null;
+    activePokemonId : string | null;
     pokemonList : Array<IPokemon>;
     pokemonListFiltered : Array<IPokemon>;
+    filterTerm : string;
     pokemonLeagueStats : { [id : string] : ILeaguePokemon };
 }
 
 export const PokemonSelectListActionTypes = {
     SET_IS_LOADING: 'POKEMON_SELECT_LIST/SET_IS_LOADING',
     SET_POKEMON_LIST: 'POKEMON_SELECT_LIST/SET_POKEMON_LIST',
-    SET_ACTIVE_POKEMON_INDEX: 'POKEMON_SELECT_LIST/SET_ACTIVE_POKEMON_INDEX',
+    SET_POKEMON_LIST_FILTERED: 'POKEMON_SELECT_LIST/SET_POKEMON_LIST_FILTERED',
+    SET_ACTIVE_POKEMON_ID: 'POKEMON_SELECT_LIST/SET_ACTIVE_POKEMON_ID',
     SET_POKEMON_LEAGUE_STATS: 'POKEMON_SELECT_LIST/SET_POKEMON_LEAGUE_STATS',
 };
diff --git a/src/ts/app/styles/PokemonApp.scss b/src/ts/app/styles/PokemonApp.scss
index 9e8ddf4..9c347ba 100644
--- a/src/ts/app/styles/PokemonApp.scss
+++ b/src/ts/app/styles/PokemonApp.scss
@@ -6,8 +6,8 @@
   align-items: stretch;
   height: 100vh;
 
-  & > * {
-    flex-grow: 0;
-    flex-shrink: 0;
-  }
+  // & > * {
+  //   flex-grow: 0;
+  //   flex-shrink: 0;
+  // }
 }