Waterfall

Waterfall is a teachable HM move that allows water-type Pokemon to climb up waterfalls.

In Super Smash Bros. Brawl, Waterfall is Squirtle's Up Special Move. It appears that a torrent of water appears that Squirtle "surfs" on top of. The attack does multiple hits with minor knockback towards the end. It is difficult to interrupt as a recovery move, as the hitbox is large, disjointed, and directly infront of Squirtle.