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: Unlimited Ammo

Numpad 3: Unlimited Jumps

Numpad 4: Set Prismatic Cores

Numpad 5: Set E-Turner Credits

Numpad 6: Set Red Part Stats

Numpad 7: Set Blue Part Stats

Numpad 8: Set Yellow Part Stats

Numpad 9: Easy Craft

Notes:

Numpad 1: Unlimited Health - while in the game, toggle on for unlimited health.

Numpad 2: Unlimited Ammo - while in the game, toggle on for unlimited jumps.

Numpad 3: Unlimited Jumps - while in the game, toggle on for unlimited ammo.

Numpad 4: Set Prismatic Cores - while in the game, make sure you have opened the inventory at least once, then press this to set to the value shown in the trainer.  Probably best NOT to do this until you have progressed into the game to the point where you have unlocked the transfer plates, as certain parts of the game are scripted to the amount you have.

Numpad 5: Set E-Turner Credits - while in the game, make sure you have opened the inventory at least once, then press this to set to the value shown in the trainer.

Numpad 6: Set Red Part Stats - while in the game, make sure you have opened the inventory at least once, then press this to set to the value shown in the trainer.

Numpad 7: Set Blue Part Stats - while in the game, make sure you have opened the inventory at least once, then press this to set to the value shown in the trainer.

Numpad 8: Set Yellow Part Stats - while in the game, make sure you have opened the inventory at least once, then press this to set to the value shown in the trainer.

Numpad 9: Easy Craft - make sure you have tried to craft something at the workbench at least once, then toggle this on.  Then you can craft things even if you have not got the materials.