Sonic Generations: Dreamcast Era

Hi Deviants, I'm back! No more exams, just going to be online in Deviantart (until I get back my results.....) And I finished the dreamcast era.

Sonic Adventure- Sonic's big leap in 3D and introduced Chaos,Big the Cat,Tikal the echidna and E-102 Gamma.
Sonic Advance- Sonic's return to the 2D dimension for a series.
Sonic Adventure 2- Sonic meets Shadow and began their rivalry.Knuckles meets Rouge and began their rivalry as well.
Sonic Advance 2- Introduces Cream and Vanilla.
Sonic Battle-Introduces Emerl.
Sonic Heroes-Metal Sonic makes his canon return and introduces E-123 Omega. (Some say this game is the downfall of the Sonic series.Can anyone tell me why?)
Sonic Advance 3-Eggman remodeled Emerl into Gmel and used a partner system for gameplay(only this time it's necessary)
Shadow the Hedgehog-Shadow became the star of his own game. Introduces Black Doom. (When will Silver have his own game.....)
Sonic Rush-Introduces Blaze the Cat and Eggman Nega. Sonic made his debut in the Nintendo DS. (I know,technically Sonic Rush is in the Modern Era, but I did this before the 3DS version was announced to have Water Palace,and besides, I regard Shadow the Hedgehog as part of the Dreamcast Era because it ends the questions in Sonic Heroes.)
Sonic Rush Adventure-Introduces Marine the Raccoon and Johnny(take note of the name). (Okay,I know this game is supposed to be in Modern Era even before 3DS announced it. Since Sonic Rush "is in the Dreamcast Era", I am going to draw Rush Adventure in the Dreamcast Era.)

Sonic belongs to SEGA