The Dice can be cheesed. When I realized this and ended up with a 20 minute difference between my earlier run and the newest one, oh god oh man oh god.
DMC1: Underwater segments. DMC2: Everything but mission 18. DMC3: Mission 17. FLYING ROLLING CUBES DMC4: I dunno, I guess the Savior fight, sometimes I'd break every orb, and the Savior would still refuse to use its beam and trigger the second part of the fight. DmC: A big part, but Mission 15 stands out, oh god that was awful.