Sound Test...
	Stage passwords...

Start a new game. At the last scene of the intro with the mechanic and their robot, press Up, Up, Right, Right, Down, Down, Left, Left.

Select "Continue" at the title screen to enter the following passwords.

Effect	Password
Stage 2	STSMFG
Stage 3	DBDLBQ
Stage 4	BFBQBT
Stage 5	KFKLCM
Stage 6	SPTQFG
Stage 7	PRNQDS
Stage 8	DHDKCB
Stage 9	SPCLST