Been a while..
Let's talk about amiga games that you objectively know aren't all that great, but you liked them anyways.
A few to kick the discussion off:
Dogs of War - Pretty much a terrible ikari warriors clone. Yet, with 2 players, we wasted hours on this thing.
Death mask - terrible controls, terrible graphics, terrible sounds. Wasted hours in 2 player on this one too.
Amiga versions of Street Fighter 2 and Mortal Kombat. GUess the console versions were faster and better but we still had a good time. Not sure if these count since we didn't have a console at the time though.