Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey. All hotkeys can be changed on the trainer.
NumPad1: Infinite Health
NumPad2: Infinite Food
NumPad3: Infinite Stamina
NumPad4: No Radiation
NumPad5: Toggle Debug Item Menu
NumPad6: Unlimited Unlock Points
NumPad7: Unlimited Jetpack
Before activating the trainer make sure you are ingame and your health etc. is visible on the screen. Activate the trainer and listen for 'Trainer activated'.
Toggle Debug Item Menu: If you press this option for the time, listen for 'Activated' sound. Then press it again to activate it (and another time to deactivate it). While active you can open the item debug menu by pressing the 'H' key.
Unlimited Unlock Points: Before activating this option you must spent unlock points first. Then activate and listen for 'Activated' sound. While active your unlock points will not decrease on unlocking.
Unlimited Jetpack: Before using this option you must use your jetpack once. Activate this option and listen for 'Activated' sound.