1. Press F10 to get to the options menu
2. Go into the configurations menu
3. In the config menu, type SPAM

For free play:
Switch CONTINUE to FREE PLAY for unlimited continues

For boss mode:
1. Go into the system and enable BOSS SELECT.
2. Save the new settings.
3. Start a normal game and select any fighter.
4. Before the battle loads, hold all three punch buttons for Juggernaut or, hold all three kick buttons for Magneto.
5. Hold until the battle finishes loading