Trial and Beta software

[Reznor]

These are the trial cartdriges I own.

The trial version of Sonic only has 2 playable levels but it offers an intro sequence not available in the retail version.

As for games that were not released but can be found in rom format you have Wrestling Madness which is the unrealeased US version of Big Bang Pro Wrestling (it only has a few differences) and also a demo of Cool Cool Jam in English.