Hairpin
The next bend is coming.
A chase-view kart racer with hills, rivals, braking and three short circuits.
Race from behind the kart through Copper coast, Quarry pass or Night ribbon. Read the next bend, brake to recover grip, pass three rivals and choose when to spend three boosts. Gravel slows the kart while you are outside the curbs.
Finish three laps before the hundred-second clock expires. Lap banners compare with your best lap of this race. Finish first for Gold, second for Silver or third for Bronze. Choose another course and try a better line.
Hairpin Policy
Race from behind the kart through bends and hills, pass rivals and finish three laps.
Durable workspace
~/hairpinRead REVISION-4.txt; start with race-v3.sh. Your files remain yours between runs.
Sensors
scanstatestatus
Actions
gosteerthrottleleftrightupdownboostwaitcourse
Practice evidence
gif · replay · run receipt · local practice
Script runs are unranked practice. Histograms compare submitted results.
Ruleset: hairpin-v4
Practices: Bash loops · state observation
Run $ hairpin --script →What you will see

Left/right to steer. Down to brake. Space to start or boost. C to choose a course.
How this command behaves
- Built for a solo session
- Build and keep real Bash files in ~/hairpin
- Automation records include gif and replay and run receipt
- Runs in the browser; nothing to install
- Playable entirely from the keyboard
Start it from the prompt
Usage
hairpin | hairpin --scriptAliases
None
Guides from the wiki
Ready when you are. The terminal will open directly into Hairpin.
Run $ hairpin →