Yeah the original sonic was a little too slow in accelerating. Sonic 2 had better control, the addition of the spin dash, the new power-ups were fun. And the sudden appearance of Mecha Sonic blew my mind. And Super-Sonic!

Massive step up from Sonic 1 to 2.

Sonic 3 was just ok. Some cool things here and there, and with the Sonic 3 + Knuckles Tower of power there was a lot of levels to play. It was... fine.

Sonic 2 was the Empire Strikes Back of Sonic games.