Organ Racing

The whole human body is the race track.
A blood-vessel circuit that starts at the heart, passes through the lungs and tours the body. A digestive course running from mouth to anus. A brain expedition across the cerebrum and cerebellum.

* Drifting is the feel of it
Hold the drift button before a corner and let the tail slide. The longer you hold, the more the gauge fills, and the moment you let go a boost fires. Hold too long and the tires let go completely - knowing when to release is the skill.

* Eleven courses
Circulatory Circuit - Digestive Adventure - Respiratory Circuit - Nervous System Expedition - Urinary Course - Hearing Spiral - Vision Grand Prix - Glomerulus Maze - Liver Hexagon - Stomach Fold Storm - Nephron Circuit
Every course has something only that organ can do. Villi in the small intestine rattle your kart, in the alveoli you swap carbon dioxide for oxygen, and at the anus you are launched into the sky and land back in the mouth.

* Ten karts
From a red blood cell racer to a DNA helix, each one looks and drives differently. Spend the points you win to raise top speed, acceleration, grip, boost and drift hold.

* Play online with friends
Share a six-digit room code and up to four of you race together. No sign-up, no login.

* Safe for children
No accounts. Records are saved on the device only. No chat, no nickname to type, and no random matching with strangers.

The names of the organs and the work they do sink in as you drive. It is not a game you switch on to study - it is a game where you find yourself knowing these things because you were busy racing.

Controls: touch pedals and steering buttons on phones. On a PC, W to accelerate, A/D to steer, S to brake, SPACE to drift.