Sonic & Tails 2 (1994) Online

In the US version of the game, the 3D Special Stage option was removed from the title screen.

This game is the first appearance of Nack the Weasel (known as Fang the Sniper in Japan).

In a prototype screen-shot, Fang/Nack under the name Jet was holding a pistol right next to Sonic, this was removed in the final version but he did have a similar weapon (a Popgun) in Sonic the Fighters.