great visuals and cool game mechanics! the physics of the pinball system feels surprisingly good and not janky, which i feel like is hard to achieve. i'm a sucker for roguelikes so the fact that you managed to put in a whole roguelike upgrade and shop system was really cool for me!
like others, i wish there was audio. i also wish though that some of the systems in the game were explained a bit more, like how much money we expect to get after a round, as well as what each of the shop items do (i'd love to know before i buy them). also small things like being able to mouse over rounds in the chamber to preview what they do (including the enemy's) and explaining that the enemy's score is the score you need to achieve would go a long way.
overall great job! i played for way more than 10 minutes :)