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: Remove All Afflictions and Damage
     NumPad2: Unlimited Stamina
     NumPad3: No Fall Damage
     NumPad4: Super Movement Speed
     NumPad5: Super Jumps
     NumPad6: Unlimited Jumps

# Items 
     NumPad7: Unlimited Lantern Fuel

# Gameplay 
     NumPad8: Game Speed

Editor Options

# Affliction Status 
     Injury
     Hunger
     Cold
     Poison
     Crabbed
     Cursed
     Drowsy
     Weight
     Hot

Notes

Wait to activate trainer until you are at the MAIN MENU to prevent the game from crashing on launch.

No Fall Damage:
Probably best to have this on to prevent deaths from falls or from super jumps, etc.