PC: Move the mouse (or arrow keys) to aim, click or SPACE to fire.

Phone: Drag anywhere to aim, release to fire.

Match 3 or more same-coloured bikes to pop them. Bikes left dangling with nothing holding them up fall too!

A new row of bikes drops in from the top over time, faster at higher levels - clear the board before they reach the bottom.

Gold star bikes are bonus riders - clear one, whether by matching it or dropping its support, and its entire row clears for big points.

Bank a shot off the side walls to reach awkward gaps.