Congrats on joining the jam and making a game!
The game has good visuals, and music. The main game loop is a bit repetitive, and boils down to "open shields & mow down everything". The controls are passable, but I'd wish we could use the mouse buttons, instead of the keyboard, to attack & use shield. The shop screen opens and closes too slow, while the game is not paused... And the fact that we've being hit isn't as pronounced, other than we lose some health. Some areas to improve after the jam, if you want to work on this game ;)
Cheers!