cat planet is a platformer video game developed by sylvie for 2009's Ludum Dare 16.

A fan-made sequel/expansion, super cat planet, was developed by Giik, who would later go on to become a developer for Rivals of Aether.

In cat planet, the player controls an angel girl and talks to cats by running into them.

The goal of the game is to explore and collect cats until you reach the final cat, wearing a golden crown. Although the game does not reward you for it, you can optionally collect all cats.

You can jump in the air infinitely, and you can control the height of the jump using up/down arrow keys. The angel slides along the ground, and bounces away from surfaces, based on her movement speed.

The world of cat planet is divided into screen-sized rooms, seamlessly connected as one big world.
There are 5 areas to explore: cat village, deep jungle, factory, lava caves and the final area, “crows”.

The game does not use streamed audio. It instead uses PxTone for its music, which is sequenced in real time from .pttune files. It appears that the game uses PxTone V5, judging from the file headers.