Grid Start

■ One rule. That's it.
Five red lights come on, one per second. The instant they all go out — TAP!
A racing-start reflex game that measures your reaction time down to 0.001 seconds.

■ What's your rank?
- Under 0.18s … Pro Driver
- Under 0.23s … Semi-Pro
- Under 0.30s … Amateur Racer
Slower than that? Play and find out.

■ Earn coins in Best of 5
Five runs in a row — your average time decides the reward.
Jump the start (tap before lights out) and you're done. The tension is addictive.

■ Collect all 31 machines
Spend your coins on the gacha and build your garage.
Animals, weather, myths, celestial bodies — 31 machines across rarity tiers.
And one Secret machine nobody talks about. Obtain it and see your number: "Owner #N in the world."

■ World leaderboards
Compete on Game Center with two boards: best single time and best 5-run average.

■ Send a challenge
Share your result card and ask your friends: "Can you beat this time?"