This could've easily been a commercial release during the Amiga's life, well done.
Out of curiosity, what tools did you use to develop this?
I'm assuming vasm and vlink, but what about graphics and sound tools?
Just found an easy way to run old Amiga games without the need for WinUAE (or Kickstart):
Cloanto provides the kickstart rom for $0.99, for use in Chrome.