Ice Age 2: The Meltdown

Notes

To use these cheats, pause the game, then input the directions quickly using either the Control Pad or the Control Stick.
Submitted by: Nintendo Power Magazine

Level Select

Up, Right, Right, Left, Right, Right, Down, Down.
Submitted by: Nintendo Power Magazine

Unlock All Bonuses

Down, Left, Up, Down, Down, Left, Right, Right.
Submitted by: Nintendo Power Magazine

Infinite Pebbles

Down, Down, Left, Up, Up, Right, Up, Down.
Submitted by: Nintendo Power Magazine