Sonic Adventure 2 (for Dreamcast) had seasonal Halloween and Christmas outfits available to download for each main character playable in the two player mode.
Story
Gameplay
Controls
Characters
E-102 Gamma
NPCs
Chaos
Chao World
Reception
Hero Side
Villain Side
Post Story
Spoilers
Stages
Rankings
Green Hill Zone
Easter Eggs
Glitches
Date
Peripherals
Connecting to GBA
Downloadable Content
Wiki
2 Player Mode
Memes
Shadow
Art
Fanfiction
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