Thrilla's Surfari

Collect nine lives and surf to the first waterfall in level 1-3. Build up speed and jump off to the right side of the waterfall that is closest to the top of the screen. Move away from the waterfall while airborne to land near a second waterfall. Move down that waterfall to jump to level 3-1.

Press Left, Up, Right, Up, Right, Down, A at the title screen.