Protótipos: Sonic 2 Early Prototype e Sonic 2 Beta

Sonic 2 early prototype (level select)

Sonic CD BETA - Músicas e sprites não utilizados

Sonic 2 [Beta / Proto / Unused Stages - Mega Drive / Genesis] - Unseen64

Sonic the Hedgehog 2 (Aug 21, 1992 prototype) - Hidden Palace

Sonic The Hedgehog 2: early prototype 1991., Spinpasta Wiki

Play Genesis Sonic the Hedgehog 3 (Nov 3, 1993 prototype) Online in your browser

Protótipos: Sonic 2 Early Prototype e Sonic 2 Beta

Sonic 2 Prototypes SCRAPPED ZONES & EARLY DESIGNS

Sonic 30 Anos: Sonic the Hedgehog (Prototype) ROM dentre outras! - Página 2 - Seganet - Retro Games - Fórum SegaNet

Resumo e Imagens das novas prototypes dos jogos do Sonic

Sonic 2 [Beta / Proto / Unused Stages - Mega Drive / Genesis] - Unseen64

S2Beta:Downloads - Sonic Retro