SPONGEBOB PLANKTON HAS TOOK MARS AND IS NOW SHOOTING LASERS AT US!!!!!!!!!
What a game, really fun, liked it a lot, neat difficulty curve, killing every planet was really fun and the ending was cool.
I have only one advice, put a buffer on the heal button, if accidentally release the heal button you have to wait the bar to get full again, just adding a timer would help this out, like in .3 seconds of releasing you can't go back to healing or something like that. It didnt bother me that much, don't worry.
Other than that, I've just had fun! Funny dialogue, really like the idea of being controlled with the mouse, thought I wouldnt see one of those in this jam, but here it is! At it's full glory. Great job!