Toobin' is an unlicensed port of a 1988 Atari/Tengen arcade game to the NES. It centers around floating an inner tube down several themed rivers, avoiding obstacles and picking up collectable items. There are also warp whirlpools which you can reach if you can destroy the sharp branches guarding them fast enough.

The author, devanwolf, reaches every warp and finishes normal levels as fast as possible by staying along the bottom of the screen.