CAPY RUNNER

Type π one digit at a time, starting with the 3.

She walks whether you type or not. Run out of planks and she drops.
A wrong digit freezes you for one second — she keeps walking.

START TYPING — 3 1 4 1 5 9 …

GAME OVER

DIGITS0

SLIPS0

BEST0

WHAT CAME NEXT

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After the 2009 Flash game Pi Runner by Spiked Math — same mechanic, different animal, and a wrong digit costs you a second rather than the run. Canvas 2D, no engine, no dependencies, no image or audio files: the capybara and the sound are both generated in code.