Auraninja
Eh, ragazzo!
Sonic 2, maybe, but I don't personally think that it is weak compared to Sonic 1. Don't get me wrong, it was not a bad game, not by any stretch of the imagination, but it was a little lacking. But hey, it did well as a first try, and some Sonic games don't do as well past the fortieth try.Most people don't count "Sonic 3 & Knuckles" because it technically counts as two games. When separate, both games are shorter and weaker compared to Sonic 1 and 2. So, in the end, S3&K gets robbed on all fronts.