Sonic Adventure/Characters

Sonic the Hedgehog
Sonic's gameplay style is the most reminiscent of the side-scrolling games. Just get to the goal (which is sometimes an animal capsule reminiscent of the Genesis games, sometimes a Chaos Emerald, occasionally just an end area). Has 10 stages.

Miles "Tails" Prower
Sonic's two-tailed fox buddy. All of Tails's stages pit you against Sonic in a race to the end of the stage. The stages are just a single section of Sonic's stages, with some fly-rings scattered throughout the sky to give you a boost. Has 5 stages.

Knuckles the Echidna
Current Guardian of the Master Emerald. When Chaos is released from the Emerald, it is naturally broken into pieces. Thus, the goal of each of the echidna's stages is to find three shards. Has 5 stages.

Amy Rose
In her stages, Amy must outrun a robot in pursuit of her, Zero, and get to the giant balloon that will carry her away. Zero is actually not after Amy, but instead the little bird she is protecting, who unbeknownst to her,. Has 3 stages.

Big the Cat
After his pal Froggy swallows a strange looking jewel and runs away from home, Big chases after the frog. The goal of each of his stages is to fish Froggy out of a body of water. Intended, along with the Chao Garden, as a way to help those new to Sonic games ease into the experience. Arguably, the Chao Garden did a much better job. Has 4 stages.

E-102 "γ" (Gamma)
Shoot things up and get to the end of the stage before time runs out, which can be increased by killing multiple enemies at once. Has 5 stages, two of which are simply get to point B, and the other three of which are get to point B and beat the boss waiting for you.