Beat both of Megas' forms.
Beat the game without dying.
Beat the game without equipping the homing beam.
Beat the game in under 20 minutes.
Beat the game without using any bombs.
Beat Stage 1 Act 2.
Beat Stage 2 Act 1.
Beat Stage 2 Act 3.
Beat Stage 3 Act 2.
Beat Stage 4 Act 1.
Beat Stage 1 Act 1.
Beat Stage 1 Act 3.
Beat Stage 2 Act 2.
Beat Stage 3 Act 1.
Beat Stage 3 Act 3.
Beat Stage 4 Act 2.
Beat Stage 4 Act 3,
Beat Stage 5 Act 1.
Beat Stage 5 Act 2.