SEUM: The Drunk Side of the Moon is an expansion which adds 3 new powerups and 33 new levels in the new space environment.
Speedrun mode now has mutators which allow you to play speedrun mode by having a powerup of your choosing when you start the level. Replay the old levels with completely new strategies.
When you're done playing all the new levels, you can make your own with the map editor. We've updated it with full support for new powerups.