I just checked the gba version, with an emu though. It's not as good as the amiga version. For starters, copper background is gone, replaced by a black layer. Then I noticed that I could no longer head left in the first level for the secret exit because it was removed. I don't see the point of releasing robocod this way in 2005. Maybe it'll get better if I play more but I'd rather use my amiga. But if the levels are completely different which is I am yet to check then it might worth playing. Explains the missing secret exit.