Good game, bit of a slow start but satisfying to see the money fall.

Bugs are problem. the width still shows it can be upgraded to "324", even though it's maxed. You can still click on the Spawnrate's button and spend cash, also just stops spawning pixels. and the last thing I know of is that the acheivement for all upgrades is broken.

You should tone the amount of uses needed to get an achievement, considering your game is as short as ~30-45 minutes, which would make the "100" uses of the bar to be tedious. if you could, put it down to ~30-50 due to how infrequent the player would need it, in both my experience and opinion.

P.S. sorry for the long review. Good game👍