I just got the do or die by myself and im pretty sure you can do the 25 the same way, plug in 2 guitars, mics, w/e, search for online players it will prob find no one, but it will still let you pick a song and play as if you were online, the only one you need a partner for is M.C. hosting a online career game and playing one song, one more would probably be There's no "I" in Band Hero, unless you have four players local!!
