User clicks the extension icon in the Chrome toolbar, which opens a popup window containing the Tetris game rendered on an HTML5 canvas. Player uses arrow keys or WASD to move/rotate falling pieces, clears rows for points, and tracks their high score. Game state is saved to localStorage so progress persists across sessions. The game ends when pieces stack to the top, and any key press restarts.

Target users: Casual gamers looking for a quick browser-based distraction / Chrome users who want an accessible mini-game in the toolbar

All source code was fully reviewed — no obfuscation or minification, making the analysis highly reliable

Monetization

No paid features detected

The extension is a simple, free Tetris game with no payment integrations, no premium features, no upgrade prompts, no Stripe/PayPal/billing APIs, and no gated functionality. The 'pro' keyword hit in verified_contents.json is a false positive from Google's signed extension verification metadata, not a paid feature reference.

Confidence: 100
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension is a fully self-contained Tetris game that runs entirely in a browser popup. There are no authentication flows, no user accounts, no API calls to external services (only clients2.google.com for Chrome update checks). Game state (score, high score, board, player position) is persisted via localStorage only.

Permission risk

Low-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

未命中敏感权限或广域站点访问规则

Publisher

Master Tools

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access