I've uploaded a new version. There are a bunch of changes I made when I should have been working.

Among the not-so-immediately-obvious features are the following:
You can press Alt+Enter to go full screen,
You play as Spaz in the '94 Christmas Edition!!!*

This version needs some credits.
Unknown, for the palette effect indices
Feline and the rest of the JCS94 team, for helping me find stuff in the level files


*This feature is a joke.