Mad Stalker Game System: PC Engine Cheat Category: Cheat Game Company: Unknown Game Category: Unknown Hint, Cheat, Walkthrough:   Mad Stalker =========== -Stage Select: goto OPTIONS screen and enter the following options: Level: HARD SE: 07 BGM: 13 then move the cursor back to the "Level" line and press I. This gives you a stage select, and also an "Extra VSMode," mode that allows you to play the Story mode as any mecha.