This is the HOME VERSION ! Blecch !
You'll notice that the character models look blocky and boring and so does the level architecture.... and it must be related to MS just not being able to "buy" the original arcade version, because perhaps it's just not "up for sale" or something....
who knows ?
but i do know this, avoid this version like the plague unless you are a hardcore Gauntlet junkie... because in that case, you probably won't care, and just need to get yer Gauntlet On no matter how it looks and feels.
You have been warned.