Is it really possible? well...actually no. This is a hacked Gameboy ROM called Sonic Adventure. The hack is of "smurfs 3" Unfortunately, If you've played The Speedy Gonzales Hack "Sonic 6" you've played this. It isn't terribly good, But it was worth a mention. It was donated to Andre by The Chaos Emerald

Also worth noting is that Andre Dirks Sonic Roms Page is Back! Goto the link below.

Source: Andre Dirks Sonic Roms