free play is free forever — a paid credit plays for the daily pot (devnet)
ARROWS / WASD steer · M sound · G graphics · ENTER insert coingfx — · seed —
One life. Walls are solid. Apples are 10 + speed bonus; every 5 apples the
game gets faster, permanently. The gold coin is worth 150 and disappears in five
seconds — it is never anywhere convenient. Deterministic core, per-tick input
recording: after a run, V re-simulates your input log and checks score +
state hash (the payout check), R watches the replay, C copies the JSON.