Activating this trainer:

Press F1 at main menu.

Listen for 'Trainer Activated'.

Press desired hotkey. All hotkeys can be changed on the trainer.

Trainer Options:

Numpad 1: Unlimited Health

Numpad 2: Quick Weapon Coolodown

Numpad 3: Unlimited Jumps

Numpad 4: Easy Craft

Numpad 5: Unlimited Use Items

Notes:

Numpad 1: Unlimited Health - toggle on and most things cannot harm you. You must wait until something has damaged you before you toggle this on.

Numpad 2: Quick Weapon Coolodown - toggle on and most weapons can be fired at will, even when they overheat. Fire a weapon first and then use.

Numpad 3: Unlimited Jumps - toggle on and you can jump up as many times as you like. Jump once before you toggle on.

Numpad 4: Easy Craft - you must enter a crafting station, then toggle this on. You can craft anything.

Numpad 5: Unlimited Use Items - you must have used at least one item. Toggle on and then when you place or use items, most items the count will not decrease.