Wow. I haven't been on here for ages. Good to see Amiga is still alive and kicking
I second Lord Aga. A Bubble Bobble clone would be great. One could concentrate on character design and sprite behaviour then, rather than having to deal with incredibly sophisticated level design.
Definitely a smart move for a game with a somwhat disctinct character. If that's what you are going for.
From what I see there (I don't currently run an Amiga/Amiga like OS myself, so I can only go by the pictures Cammy posted) Backbone looks quite charming. Seems to be the Polaroid of video game developers, from what I gather.