It's in third person, you play as an incredibly powerful hero, and you slaughter hundreds upon hundreds of enemies with a mixture of strong,
weak, and
super attacks.
It has the standard trappings of the genre: Weapons that get stronger from power - ups dropped by enemies, a secondary screen - clearing
super attack with limited charges, and boss battles where you hammer away against a beefy target with patterned
attacks you have to learn how to dodge while watching for exposed
weak points.