UFO ride

At Mt. Angrio (Ride The Mountain), enter the purple circles next to one of the helicopter launch spots (at the signs marked ‘1’ through ‘6’). Press A to use the helicopter, then immediately hold B + Up to replace it with a UFO, which will take you to the other parts of the mountain.

Throw snowballs

Swing the Wii-mote at the map screen to throw snowballs at the screen. Note: This can also be done at some other screens