Doom XBLA feels very dated by today's standards and hasn't exactly aged well. That said, Doom is just as fun as ever.
The single player will take players a while to finish, and speed runs are something everyone should get hooked to.
The multiplayer on the other hand, has two modes, Deathmatch and co-op. While both fun to play, Co-op (imo) was much better because it had a LOT less lag. The deathmatch mode suffers from tons of lag that could put a hamper on your fun.
Nonetheless DOOM XBLA is an absolute must buy because of it's $5 price tag, and the sheer hours of fun to be spent.
Story: Isn't one.
Graphics: Very dated. Still pixelated blood looks pretty awesome.
Gameplay: Incredibly simple fps, aim left and right, anything in your line of fire dies.
Overall: Worthy of $5 though, you could just as easily find the pc version and a multiplayer mod for free.
8.5