The swap

• Whoever is behind holds Nitro: a burst of top speed to catch up.
• Whoever is ahead holds the Shockwave: a blast that knocks a rival close behind into a spin. They come out of it facing down the road.
• The booster swaps the moment the lead changes. Fire it when the ring is full.
• Nitro charges a little faster than the Shockwave, so the car behind always has a way back.

Go faster

• The booster ring fills as you drive. Drifting fills it fastest.
• Drift through a corner and let go for a mini-turbo. Hold the drift longer for a super turbo.
• Tuck in close behind your rival to catch a slipstream: extra speed and extra charge.
• Drive over the yellow chevrons for a speed boost.

Forks

• Turn on Fork on the main menu to race versions of every track where the road splits in two around an island, then joins up again.
• Both ways are the same length and carry the same pads and bumpers, so neither is the fast way. Pick one before the bumper on the island's nose.
• Take the other branch to stay clear of a rival's shockwave, or follow them through to keep the slipstream.
• Fork versions keep their own best times, ghosts and stars.

Walls and bumpers

• Walls and pink bumpers bounce you off and point you back down the road.
• A glancing touch costs nothing. A head-on hit costs some speed.
• Pointing the wrong way? Press R or tap ↻ to face down the road from a stop.
• If your car is stuck for a few seconds, it is put back on the road for you. The pause menu can do it too.

Modes

• Race the AI: first across the line wins. The camera follows you; if the AI stays off the screen for 2.5 seconds, whoever is ahead wins by knockout.
• Time trial: race a ghost of your best run for gold, silver or bronze.
• Online duel: one player hosts and shares a 4-letter code, the other joins with it. Each of you sees your own car.
• Each track has three stars: beat Normal AI, beat Hard AI, and set a gold time.

Keyboard

Touch

• The car accelerates by itself. Put a thumb anywhere on the left half and slide it sideways to steer.
• Hold the steering at full lock at speed and the car drifts by itself. Ease off to fire the turbo.
• Tap Boost when its ring is full.
• Tap ↻ to face down the road from a stop. Hold it to brake and reverse.
• Prefer buttons, or steering by tilting the phone? Change Steering on the main menu. Tilt works when the game is open directly in your phone's browser.
• Landscape on the main menu goes fullscreen sideways where your browser allows it; otherwise just turn the phone.

Gamepad