WTF?!? Floating Samurai Zombie Head Shmup EXPLAINED

'WTF?!? Floating Samurai Zombie Head Shmup EXPLAINED (subtitled WTF Samurai Zombie?!?') is the 23rd episode of Culture Shock and the one-off episode on Zombie Nation on The Game Theorists.

Description
''A game that has confused everyone from Spoony to JonTron, Samurai Zombie Nation is a WEIRD game. You play as a floating head destroying the US. Seriously. It's a shmup-style shooter where your giant ghostly head destroys cities as you try to save them...and yet, it makes PERFECT sense. Goombah knows why!''