spud - I played your game Sunday but didn't have anything to report 'til today. About one third of the board is all I've managed to collect so far. Usually running off the edge and re-appearing on a different level causes me to run into an enemy. Also it's hard to pick up the character right away when you're looking one place and it appears somewhere else. It would be hard to unlearn my habits in a few plays.
Here is a bug I caught while playing on WinUAE.
a500 - stand perfectly still at the start and let enemy hit you. The game either locks up or gurus. Depends on extra RAM and/or Kickstart which it will be.
a1200 - The game kept on going, That doesn't mean it is working right, it just didn't crash.
The sound, controls, graphics look good to me.