A trick that might just kill them if Okita didn't set aside his distaste for the rurouni and what he'd just done in order to work together. He could potentially leave the man to die, but there was a higher risk that whatever lay beyond the door was far worse and would require even more teamwork. There was, however, one thing he could not stand and when Kenshin almost ordered him around. The swordsman couldn't help but give Himura a glance that said 'Strike one' and then took a step back, listening to the boulders crashing down and rolling through the room.

A moment later, he sensed something approaching and darted to the side, watching as another came through where they'd just been.

There didn't seem to be a pattern, but there were certainly warnings. This would require speed and working together to call out when one heard a boulder coming. Speed being the key. Okita quickly tied his sleeves back with the white string looped around his chest and cleared his throat. "Move when the sound comes, just try not to get crushed. Sound like a plan?"