Go to Crystal Caves as Donkey Kong with musical power. Go to the cluster of buildings near Candy's music place and enter the one for DK using his drums. There are parts of the floor opening and closing. If you stand in the corner of one at the right angle, you will fall when it opens and hang onto the edge. It's not much of a glitch, but it looks strange because DK's are hands are almost all you can see of him. You can also scoot him around to get a better look.
Submitted by: kornyhatemachine