Sonic Classic Collection (DSi Enhanced) (E) ROM < NDS ROMs

Sonic, Sonic 2, Sonic 3, and Sonic and Knuckles are now on the Nintendo DS in one package, including the lock-on functionality.

Sonic Classic Collection DS: ROM Differences Research

Nintendo DS Manuals : Free Download, Borrow, and Streaming

Sonic Classic Collection (DSi Enhanced) (E) ROM < NDS ROMs

DS #DSi 0040: Sonic Classic Collection (USA), Page 8

RPG Tsukuru DS - Nintendo DS(NDS) ROM Download

Sonic Classic Collection (EU) ROM Download - Nintendo DS(NDS)

BRAND NEW and SEALED Nintendo DS Game., Note: Can be played on the Nintendo DS, Nintendo DS Lite, Nintendo DSi, Nintendo DS XL, & Nintendo 3DS Only.

Sonic: Classic Collection - Nintendo DS

Sonic Classic Collection (DSi Enhanced) - Download ROM Nintendo DS

Sonic Compilation (Europe) ROM < Genesis ROMs

Sonic Classic Collection (DSi Enhanced) (2010) - Download ROM