Cat Planet (2009)

This is an bouncy exploration platformer where you are on Cat Planet and there are cats you can talk to. How many cats will you find?

Controls: 
Left/right - move
Up/down - hold to change flap height
F2 - mute sound effects
F3 - mute music
F4 - fullscreen/windowed toggle
Esc - exit
Any other key - flap wings

There is no save feature, so you will need to complete the game in one sitting.

This is a bugfix update released in 2010. It is probably the version of the game that most people played because it was available for the longest time. Notably, it contains a bug where the walls don't line up correctly across screens in one part of the factory, I noticed this bug shortly after release but I didn't bother fixing it for like 7 years.