Starting the game under the professor's supervision.
One of the game's graceful moments: swimming in vomit.
Floating in the cloud-like white vomit.
Red vomit can be used like a jetpack.
Black vomit is denser and can be stood on.
Acid normally kills you, unless you've taken the yellow pill.
One of the more creative levels in the bonus chapter: releasing a vomit explosion.
You'll see the dying animation a lot.
Acid can be used to melt this kind of tile.
Even though you're black, you can still redigest green vomit.