I have only played the demo, but i got to say...its definetly worth the buy off xbox live
even though its not a lot of playing time, i must've spent at least 45 minutes just playing the demo. Im definetly planning on buying this. The online
co-op seems to be a GREAT idea for this game. Definetly a buy on live if you like action games. Another thing is that this game is way too addicting. If your looking for a game on xbox live with great action, get this..you won't be dissapointed.