This is well made and quite fun. There are a few snags I ran into whilst playing though.
- First I kept pressing Esc to exit shop, which minimised the game and had me panicing
- The Highscore text looks like a button but actually just starts endless mode
- The resolution didn't scale great to my monitors.
- Money heading to you means you can mostly stay in the circle. Perhaps keeping it outside the circle would encourage the player to rush out of that safety net.
- When it started I didn't realise I had to start the circle by buying it in the shop. Perhaps add ingame levers instead.