Fight all the dark enemies appearing on the screen as you upgrade your character and shoot and slash

Manual:
A = Evasive action.
S = Gun action.
D = melee action.
Left/Right arrows = move.
Up/Down arrows = combo triggers.

Special moves
Rising Dragon - Up + D.
Serpent Fang - D (airborne).
241 - Down + S.
Dive roll - Up + A.