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

# Player 
     NumPad1: Invulnerable 
     NumPad2: Unlimited Health
     NumPad3: Fly
     NumPad4: No Clip
     NumPad5: Float Player Higher While Flying
     NumPad6: Float Player Lower While Flying
     NumPad7: Change Player Speed
     NumPad8: Increase Player Speed
     NumPad9: Decrease Player Speed
     Multiply: Set Normal Player Speed
     Add: Change Player Jump
     Separator: Increase Jump Height
     Subtract: Decrease Jump Height
     Decimal: Set Normal Jump Height
     Divide: Change Player Gravity
     F1: Decrease Gravity
     F2: Increase Gravity
     F3: Set Normal Gravity

# Weapons 
     F4: No Reload
     F5: Unlimited Reserve Ammo
     F6: Super Damage

# Enemies 
     F7: Change NPC Speed
     F8: Decrease NPC Speed
     F9: Increase NPC Speed
     F10: Freeze NPC
     F11: Set Normal NPC Speed

# Position 
     F12: Save Position Slot 1
     F13: Save Position Slot 2
     F14: Save Position Slot 3
     F15: Save Position Slot 4
     F16: Save Position Slot 5
     F17: Restore Position Slot 1
     F18: Restore Position Slot 2
     F19: Restore Position Slot 3
     F20: Restore Position Slot 4
     F21: Restore Position Slot 5

# Gameplay 
     F22: Game Speed