Sonic Adventure: Trial Version
From Sonic Retro
Sonic Adventure: Trial Version (not to be confused with Sonic Adventure: Trial Version for E3) is, as the name suggests, a trial version of Sonic Adventure. It is a common demo of the game in which players take Sonic the Hedgehog around the first stage, Emerald Coast. Following this the game runs a few cutscenes from various points in the story.
Sonic Adventure: Trial Version can be found in the Dreamcast demo discs, DreamOn Volume 2, Volume 22, Collection 2 and Collection 4 and Sega Dreamcast Generator Vol. 1. It was released around the same period as the overseas versions of the game, so the differences are relatively minor.