Sonic Colors (U) ROM < NDS ROMs

It's a very good Sonic game, the quick-fire nature means it's perfect for its hand-held platform, and if you're only going to pick up one Sonic for your DS, Sonic Colors is definitely your best bet.

GBATemp ROM hacking documentation project (new 2016 edition out), Page 2

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Sonic Colors (U) ROM < NDS ROMs

Sonic ROMs - Sonic Download - Emulator Games

I recommend playing Sonic Colors! Very cool abilities and great use of the double screens. : r/3DS

NDS ROMs FREE - Nintendo DS ROMs - Emulator Games

Repack] DS-Scene Rom Tool v1.0 build 1215 (Includes CMP and AP Database)

Sonic Colors, DeSmuME Emulator [1080p HD]

Sonic Colours (E) ROM Download - Free NDS Games - Retrostic

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Wii] Sonic Colors PT-BR

Sonic Colors (U) ROM < NDS ROMs