Mr Bullet 2

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Mr Bullet 2",
  "manifest_version": 2,
  "description": "Mr Bullet 2 is the second installment into this great online game where you will be playing as a spy",
  "icons": {
    "16": "16.png",
    "128": "128.png"
  },
  "version": "1",
  "browser_action": {},
  "background": {
    "scripts": [
      "popup.js"
    ],
    "persistent": false
  }
}