CheatOgre.com: Dark Summit

Faster recovery
Press A after falling to recover quicker

Get Alien Unlocked:
Hold the Back + Start button and press Y, L, X, B, R, A, R, X. Now you will have challenges 43, 48, 49 & 50 unlocked and have bomb piece #5

Get All Boarders:
Hold the Back + Start button and press Y, L, X, B, R, A, R, B

Get More Points:
Hold the Back + Start button and press Y, L, X, B, R, A, R, A. Now you will have 9 million lift points and 9 million equipment points

Get Challenges Finished:
Hold the Back + Start button and press Y, L, X, B, R, A, R, Y. Now you will have challenges unlocked except 43, 48, 49, 50. You will also have all bomb pieces except #5

Get Slo Motion Mode:
Hold the Back + Start button and press Y, X, B, L Now you can press L + R in the air for slow motion

Shoot Barrel:
Hold the Back + Start button and press Y, X, B, R