Very nice visuals, glad to see another character and arena based bullet hell around.
The writing was nice.
The controls felt a bit stiff, and the contracts were a bit confusing when it first popped up, but it's a very nice system that incorporates a lot of mechanical design. Player determined difficulty, build options, and the jam theme, to say the least.
It would have been nice to get some short descriptions on the contract on some of the less obvious items.