Well done! The concept is creative, and the game is both fun and challenging. Very impressive that you made it in only a couple of days and it was your first time with the tool.
I do think a little more explanation of the controls/goals/mechanics would be useful, but the basic controls are pretty simple, and the rest of the mechanics become apparent after playing a little longer.
I wonder if you could accomplish your regrowth idea without additional assets by just not rendering the coins or making them smaller while they are regrowing? At least making them a different color would be helpful. It’s hard to tell the difference between a yellow coin and a recharging coin.
Also, it would be helpful if the stats at the top of the screen were always there. It seems they disappear in favor of the smaller ones above the printer when that is visible but those are harder to read.