Sonic advance 2 doesnt add much from sonic advance, except more difficulty.

User Rating: 6.9 | Sonic Advance 2 GBA
Sonic advance 2 is a solid game, but is different than most sonic games before it. The levels are much larger, and require a great deal more of concentration, which in turn makes the game less enjoyable. At points the game is great, but at others your so frustrated you just want toi chuck your advance right out a window. Sonic advance and sonic advance 3 are overall more fun games, and i would recommend those two the advance sonic fan looking for some 2d action. (and if you want get mario advance, thats a good game)

-Hiccupski, your source for sonic reviews. (And other platformers)