Stuntboost

Finish all bonus levels.

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Get all diamond medals in the bonus levels.

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Find all shortcuts in the bonus levels.

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Find all collectibles in the bonus levels.

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Get all achievements.

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Touch the ceiling.

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Finish a level by skipping a checkpoint.

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Get a diamond medal.

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Level A1: Ride the cable car, but start from Level A1.

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Level A1: Ride a lap on the wooden train track.

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Level A8: Kickflip over the wall with the apples on top.

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Level B3: Reach the goal without grinding forwards.

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Level A2: Reach the goal without touching the ground for longer than 150 milliseconds at a time. It starts after your first jump.

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Finish all normal levels.

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Level B3: Reach the goal only by grinding. Riding on the ground once at the start is allowed.

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Level B8: Reach the goal only by grinding. Riding on the ground once at the start is allowed.

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Level A6: Reach the goal without jumping.

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Level A11: Reach the goal without jumping.

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Level A12: Reach the goal without jumping.

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Level A13: Reach the goal without jumping.

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Level C5: Reach the goal without jumping.

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Level C1: Finish the track in reverse.

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Get all diamond medals in the normal levels.

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Level A1: Ride on top of the skateboard and then return to the start of the level.

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Level A11: Jump through the card house and then return to the start of the level.

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Ride at over 99.9 cm/s - nearly as fast as a human walks.

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Smash a monitor.

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What do you mean, you don't know what that is?

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Fall a good amount -> Jump when touching a downward slope -> Jump when touching a ramp.

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Start a grind while flying backwards.

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Turn off the graphics.

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Get crushed by a skateboard wheel.

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Without throwing up.

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Complete 1000 runs.

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Get all silver medals in the normal levels.

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Get all gold medals in the normal levels.

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Get all silver medals in the bonus levels.

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Get all gold medals in the bonus levels.

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Find 20 shortcuts

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Beat the Tornado without respawns.

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Beat the Tower without respawns.

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Turn off the lights.

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Get into Mirror Mode.

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Play the camera calibration level.

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Collide with some audio knobs.

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Find all shortcuts in the normal levels.

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Collide with your sister's digital camera.

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Exit the level through the door.

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Find all collectibles in the normal levels.

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