i literally could not stop playing this game. the only thing that stopped me from playing this game for 3 more hours was the balls surpassing 3000 speed. they were moving so fast they crashed my tab.
incredible.
from the satisfying sound effects, to the subtle time slow effect when you hit a ball with more strength, to the minimalist but very pleasant pixel art, to the well thought out enemies, i could not have thought of a better example of managing scope. you kept it small, and executed on your idea impeccably.
only critique is maybe to try and add more insane enemy ai to the game that can circumvent high ball speeds. once you upgrade 'decrease deceleration' enough, you've effectively got a laser beam that sweeps the room. i won't lie, i did love this. also, i would make hearts muuuuuuch more expensive.
anyways, this game was like crack. love it!
EDIT: also, i laughed out loud when the game ended and it said something like 'you can sleep safely now'. the idea of a man ruthlessly smiting invaders in his home (that no longer have any chance at survival) just packing up and going to bed was incredibly funny to me.