Maybe the most interesting part of this collection is this:
Sega wrote:ALL TITLES UPGRADED TO HI-DEF. The classic 2D style never looked so good! Each of the titles has been converted to hi-def (720p) and will be a blast to play using the intuitive controls of the Xbox 360® and PLAYSTATION®3 systems.
It'll be interesting to see how these older games look in high definition.
The odd thing is, the official description of the game says it includes four Phantasy Star titles, but only II, III, and IV are listed. It makes you wonder what the fourth one is, since this is a Genesis collection and the Genesis only had those three.
Official site: http://www.sega.com/games/?g=577