Get all the coins and put them in the following channels and mash C as they reach the top.
Round 1: Channel 2
Round 2: Channel 5
Round 3: Channel 3
Round 4: Channel 5
Jump at one of the white segmented poles in game and land directly on top of it.
As you boune on it the segments will turn red and you will get half a heart for each changed segment.
In Options, move the cursor to Exit. Now press right, left, left, right, right, right, left, left, A. The Round Select text appears. Set it to ON, and when you begin a game, the Round Select menu appears.