Why port something????
If I wanna play sonic I'll load up WGens or put it on the Real Thing (TM)!!
We could do a similar style of game but lets not get drawn into doing a fookin port of an existing game just to "prove" the Amiga can do it!!!
I think the Amiga is more capable than that anyway...... and a good platform/shoot 'em up/beat 'em up would be great. but an original NEW one :P