Sadly, the two other releases are very poor. Sonic Spinball is bound to catch the attention of all the Sega fanboys out there, but be warned - the game is something of a stinker, being a rather dodgy fusion of platforming and pinball that never really clicks properly. The PC Engine/Turbografx RPG Double Dungeons is awful and should be avoided in the same way you would shun an annoying relative.
"What's going to be the best way to make that happen?"
Delayed, yes, but more relevant in its new guise