Shooter on HTML

Any Websites will be stage of the Shooter. Click ext icon to start. - [←→] Walk - [↓] Get down - [Z] Shot a bullet - [X] Jump -…
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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Shooter on HTML",
  "version": "1.0.2",
  "icons": {
    "16": "img/icon_16.png",
    "48": "img/icon_48.png",
    "128": "img/icon_128.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {},
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "web_accessible_resources": [
    "img/balloon_brust1.gif",
    "img/balloon_brust2.gif",
    "img/balloon.gif",
    "img/jump.gif",
    "img/wait.gif",
    "img/walk.gif"
  ]
}