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: Super Damage

Numpad 3: Mega Diamonds

Numpad 4: Unlimited Bombs

Numpad 5: Unlimited Cactus Water

Notes:

Numpad 1: Unlimited Health - toggle on for unlimited health

Numpad 2: Super Damage - toggle on and most enemies are killed quickly.

Numpad 3: Mega Diamonds - toggle on to reset your diamond count high. The game may cap or reset your diamonds from time to time and it's best to use this, then press E to see you have more, then toggle off.

Numpad 4: Unlimited Bombs - toggle on and if you have bombs when you use them they will be unlimited. May work for some other items.

Numpad 5: Unlimited Cactus Water - toggle on and if you have a cactus water, when you use it you won't lose any.