fix: clean up linting errors

src/scenes/Main.js

@@ -1,7 +1,6 @@
-import { Block, Player, Vip } from '../sprites';
-import { FRAMES, SCENES, SHEET, TEXTURES } from '../constants';
+import { Block, Vip } from '../sprites';
+import { FRAMES, SCENES, TEXTURES } from '../constants';
 import { Scene } from 'phaser';
-import { Score } from '../texts';
 
 const DEGREES = {
   '90': Math.PI / 2,

src/sprites/Block.js

@@ -1,5 +1,5 @@
-import { Physics } from 'phaser';
 import { FRAMES, TEXTURES } from '../constants';
+import { Physics } from 'phaser';
 
 export default class Block extends Physics.Matter.Sprite {
   constructor(world, x, y, texture, frame, options) {

src/sprites/Vip.js

@@ -0,0 +1,15 @@
+import { SCENES, TEXTURES } from '../constants';
+import { Physics } from 'phaser';
+
+export default class Vip extends Physics.Matter.Sprite {
+  constructor(world, x, y, texture, frame) {
+    super(world, x, y, TEXTURES.BEAR);
+    world.scene.add.existing(this);
+  }
+
+  onCollision(body) {
+    if (body.gameObject !== null) {
+      this.world.scene.scene.start(SCENES.GAME_OVER);
+    }
+  }
+}