Ah my head and eyes hurt, but I'm impressed by the graphics. The backgrounds, font and explosion look very polished.
Thank you. 💙 When I first heard about the two-color jam, I wanted to experiment with "false color", a technique used in film where the frames alternate so fast that the persistence-of-vision effect creates a third color. In a computer game, such an effect requires a balancing act of refresh rates that is going to take more work.
The fonts are Helvetica (which you see everywhere) and Buxom (which you do not).