If you do a butt-bounce when you are falling from a high place, you will not lose a wedge. Note: Make sure that you do not fall off a cliff or platform.
Kill Blinky's Frog
Butt-bounce three times on the frog's tongue when it is wooden. When frog's tongue turns to steel, jump on top of tongue and rev-roll into the frog's mouth three times to kill it.
Saw-Maniac
First the Blue-ghost will talk to you. Press "x" to make him stop then he will start to launch saws at you, so be prepared. After dodging all the saws you should be able to have a free and clear run to a B-doing. Bounce on it, but ONLY when he stops moving and make sure you land on his glass. After you have hit his glass he should start throwig saws at you again. Dodge these and start again!
Unlock Games
Collect the amount of tokens shown to unlock the different games