The settings that matter most; "Show all settings" for the rest. Hover a name for what it does; double-click it to put it back. Sliders that reshape the track build a new one.
Generating course
Hold either side of the screen to steer. Gravity does the rest: boost and brake are there when you need them, but mostly it is the line you pick.
Gates are numbered, and your score is the number on the last one you passed. So falling off is not a mistake. Aim it well and you land forty gates further down.
Keys: A / D steer · W boost · S brake · Space power-up. On a phone: hold a side to steer, both sides to brake, the gauge to boost, and tap a power-up to use it.
Sound effects by Kenney (CC0)