You pick a minigame, from Reaction Speed and Button Mash to Mole Smash, a 3D Cube Stack and a Home Run Derby, and each round lasts between 5 and 30 seconds after a short countdown. When it ends you get a challenge link, and the creator says a friend who opens it plays the exact same round, with the better score winning. Playing and sending challenges work without an account, and a short ad card sometimes shows before your result. Each game is tiny on its own, so it plays best as a quick back-and-forth with someone. Works on phones and computers.
How the creator made it
The creator directed, reviewed and playtested the project while Claude Code wrote most of the code, including work on game rules, scoring, server validation and tests. They discovered that accounts created by automated tests were appearing on the public leaderboard and changed the rankings to exclude them. They also moved score checks to the server and made it count only completed matches whose results agree with both players’ scores. They now make a separate pass to look for ways the rankings could be abused.
From their page on GitHub ↗ and a page on itch.io ↗.
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