Collect 10 Specter Emblems to unlock the SnowKidz snowboarding mini-game. To accelerate, press the Analog-stick Up or hold D-pad Up. Characters are Professor, Spike, 1-Ton, and Natalie. You will see a gauge at the bottom of the screen. When you collect glowing bananas, your gauge will fill and you will get a boost of speed. To increase your gauge, hold X and release; this will make you jump. While jumping, hold or press Circle or Triangle. You will perform a trick and increase your gauge. Note: To get higher up, jump while on a hill of snow.

Collect 20 Specter Emblems to unlock the Specter Boxing mini-game; characters are 1-Ton and John.

Press Circle to evade an attack.
Press X for an uppercut.
Press Square for a quick light jab.
Press Triangle for a slow heavy jab.

Press Right + X for a dash uppercut.
Press Right + Square for a clockwise spin jab.
Press Right + Triangle for a counter clockwise spin jab.

If monkeys see you and jump into their UFO, equip your slingshot and shoot it down. When it falls, the monkey will be temporarily stunned.

When you go to save the game, go to the view monkeys section (the floppy disk with a monkey on it). To view a monkey, you are instructed to press X, but instead you can also use Circle. Highlight a monkey and press either X or Circle. Move to the last monkey you have (you must have over two pages), then move back to the first monkey. There will be an "L" at the bottom left hand corner of the screen, but you cannot move back with L. To exit this glitch, press R once and when you press L it will be gone.