HAM games are possible without fringing....one just has to think outside the box of "supposed" Amiga limitations.
Here is how its completely possible without any fringing:
Ever used Brilliance? or Broadcast Titler 2? well they use 2 or more different screens at different resolutions and different colors at once, and like brilliance.....the tools screen can be completely seperate from the resolution of the Image thats being painted.........this same technique can be applied to a game.........................the backgrounds can be HAM and the Sprites and characters can be on a different screen and different resolution and different colors and then like a draggable screen, placed ontop of the HAM background without any effect to the HAM game backgrounds which can also be animated mind you.
Broadcast Titler runs fantastically smooth on a 7mhz 2mb or 3mb Amiga, I think the game will do the same.especially since it will probably be running in 352 x 240 and Broadcast Titler runs in 720 x 480 Hires Interlaced! so just imagine!
Its Possible! because Amiga Makes It Possible!