Prey trainer - use the following keys while the gameplay to unlock the corresponding effect:
Y: Unlock Weapon Scroller
U: Max Lighter Radius
I: Get Infinite Lighter
O: Get Infinite Health
P: Get Infinite Ammo/Spirit Ammo
H: One Hit Kill
J: Save Position
K: Restore Position
L: Low Gravity
N: Teleport Ammo
M: Super Jump