EASY MODE
On the Title screen, press Start to enter the pipe room. In this room, press Select to get into "Easy Mode." You can then begin any saved file you wish.
PLAY THE DEMO
When the Title screen appears, hold Up, Select and B (in that order). Continue to hold the buttons until the screen changes. After playing the demo for about 60 seconds, however, the game will freeze up and you'll need to reset.