Bit of an Amiga wives tale that.
There was an early demo apparently written in AMOS, but that's about it. The released product was written on pc and then downscaled/ported to the Amiga.
Having said that, it's probably a game type that AMOS could do pretty well. Even grac and graal have produced some decent efforts, so given some resources and using AMOS directly rather than "construction kits" written in AMOS Id hazard a guess something commercial quality could be possible.
