The stage battles from Brutal Legend. Yeah, you heard me.
Cut them out, as so many uninformed people wanted, and the entire game falls apart. The extremely fun and polished multiplayer that they worked on exclusively for the first two years of development? Gone entirely. So no more playing as Ophelia or Doviculus.
The members of Ironheade? They're no longer active participants of battles. All of their huge amounts of dialogue for all kinds of battle scenarios is gone. The double team attacks, where you can take direct control of any of them at will? No, if the game is 'just a hack and slash', they're gone too (but of course nobody who complained about the battles ever used the double teams, so it wouldn't affect them anyway). Looks like Ironheade is just going to be some characters you speak to in cutscenes but go away whenever you take your axe out because you wouldn't want them to get in the way by helping out out or anything, would you?
The solos? Well, the car one can stay, and possibly facemelter. But all the ones relating to battles? Gone. No Rock Block. No Fan Tribute. No Summon Army or Rally Flag. No Anvil of Burden.
The enemies? No point in them having actual personalities if you're never going to be able to command them in multiplayer! No point in having cars or any large enemies if you don't have any troops of your own to double team with to take them down! Or, wait, we can keep them, just make it so they die in a couple hits so you're never in any situation that you can't solve by just smashing buttons.
So what is left? Your axe, guitar, and car. No allies, just you on your own, every situation exactly the same, no variety, nothing interesting at all. So the game is basically Dante's Inferno with different textures - oh, but we all know how fun Dante's Inferno was, right guys? ...Guys?