Activating this trainer

If not state otherwise below, press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options

# 8 Bit 
     NumPad1: Invincible 8-bit
     NumPad2: Unlimited Lives 8-bit
     NumPad3: Unlimited Ammo 8-bit

# 16-Bit 
     NumPad4: Unlimited Lives 16-bit
     NumPad5: Unlimited Health 16-bit
     NumPad6: Unlimited Shock 16-bit

# 16-Bit Chaos Continues 
     NumPad7: Invincible 16-bit Chaos Continues
     NumPad8: Unlimited Health 16-bit Chaos Continues

Notes

Not all games in this emulated collection were able to make options.
LEAVE OPTIONS OFF  until you ENTER THE GAME AND ARE MOVING AROUND, then ONLY TURN ON OPTIONS SPECIFIC to THAT GAME.  Toggle options OFF when leaving and going back to MAIN MENU.

Otherwise you will crash the game.