Flashy's Math Adventure

Flashy is a free, open-source math game designed to help kids practice arithmetic in a fun, engaging way.

Players guide Flashy the dog through 4 worlds, each focusing on a different operation:

• Addition Alps
• Subtraction Swamp
• Multiplication Meadows
• Division Desert

The game features 40 levels of increasing difficulty, friendly characters to meet, and boss battles to conquer!

Open Source

Flashy is released under the MIT License. The source code is available on GitHub:

github.com/Ported/flashy

Contributions, bug reports, and feedback are welcome!

Technology

Built with Python and Pyodide, running entirely in your browser. Hosted on Cloudflare Pages.

Last updated: November 2025

What We Collect

Flashy collects only your chosen player name for the leaderboard. That's it.

• No email addresses
• No personal information
• No tracking or analytics
• No cookies

Local Storage

Your game progress is stored locally in your browser using localStorage.

Leaderboard

When you create a player, your chosen name and score are stored on our server (Cloudflare D1) and displayed on the public leaderboard. No other data is collected.

No Commercial Use

Flashy is a non-commercial, open-source educational project. We don't sell data, show ads, or have any commercial objectives.

No Warranty

This software is provided "as is", without warranty of any kind. See the MIT License for full terms.

Contact

Questions? Open an issue on GitHub.