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Change code. Watch the world react.

Learn programming by repairing small game mechanics. Your code runs on-device and the preview updates automatically.

Variables and arithmetic

Rocket Boot Workshop

Axi must clear a broken bridge. Every coin adds one power point and every combo adds two more.

YOUR QUESTComplete calculateBoost(coins, combo) so the boots receive coins + combo × 2.
Predict
2Trace
3Repair
4Test
5Explain
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LIVE PREVIEWStart editing to wake the world
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