Metal Slug 6: how to enable red blood and violent effects
- Enable debug mode, on title screen: 1) insert coin 2) press Start with pressed Service and one of Player 2 buttons 1-3 (A-C) this is quite tricky, normally game not allow too many keys pressed, fast mashing of this 3 keys forks for me with ~1/3 success probability.
- During gameplay press Player buttons 4+5 (D+E) once for Pause and once again for Debug menu. - Navigate to last menu item and select it (A button) - this enables violent mode, stores it in Backup SRAM and reboot the game. see 1st attached screenshot
- as alternative violence can be enabled just for this game run - see 2nd attached screenshot