ZippyJoy

Welcome to the ZippyJoy knock laboratory, where every engine run is a test of memory, nerve and timing.

You are the fuel test engineer on duty. The ECU flashes a firing order across six glowing injector cylinders. Your job is to repeat that exact sequence by tapping the cylinders before the Knock Meter climbs into the red. One wrong tap triggers a knock spike and the sequence replays. Let the meter max out and you lose a piston. Lose every piston and the engine seizes for good.

Each cleared round revs the bench higher: sequences grow longer, the meter fills faster, and the pressure never lets up. How many rounds can you survive?

FEATURES
- Six-cylinder firing order memory gameplay built around real knock test flavor
- Rising Knock Meter pressure that punishes hesitation and rewards focus
- Engine shake, knock flashes, flame bursts and exhaust particle effects
- Garage Shop: unlock a Spare Piston, a Knock Damper and three injector skins with coins you earn on the bench
- Best score and coin progress saved locally
- Synthesized retro sound effects with sound and vibration toggles
- Clean one-hand portrait play, perfect for quick sessions

Tune your reflexes, trust your memory, and keep that heptane burning clean. The bench is hot and the firing order is waiting.