The ending plays after defeating the Boss. As the credits roll (skippable with the shoot button), Welltaro keeps falling — past the names of creator Ojiro Fumoto, sound designers Joonas Turner and Eirik Suhrke, artist NEMK and the Devolver Digital crew — until he finally reaches the bottom of the well.

There he finds what he came for: a cat. He picks it up, fires up the Gunboots, and rockets back toward the surface.

Beating the game for the first time unlocks Hard Mode.