At the title screen, where it says "Push Run Button", press the following buttons:
Code Effect I, II, Up, Down, Left, Right, I, Run Change Ship Type Up, Left, Down, Right, II, I, I, I, Run Invincibility Up, Up, Down, Down, Left, Right, Left, RIght, II, I, II, I, Run. Shooting Mode I, II, I, II, Run Sound Test
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