There was probably a better, less insane, way of lowering that secret floor. But, Majima had already committed to activating it with a headbutt so by GOD that damned thing was going to be lowered with a god damned headbutt
i love how kiryu casually says "hey, put your 300 men you were gonna put against go-ryu to work on bombs, and i'll deal with them myself" and nobody objected
Majima headbutting the desk like a fucking dumbass just saved kamurocho from being destroyed by 31 bombs Even with a stupid action like that he's done way more than daigo throughout the whole game