UNLOCK THE CHEAT MODE
On the Main menu press:
Circle, Left, Right, Circle, Up, R2
A Cheat option will now be available on the options screen,
You be allowed to select God mode, all weapons and unlimited ammunition,
unlimited oxygen, no chest bursting, and level select.
UNLOCK THE RESEARCH
MODE
On the Main menu press:
Square, Up, Down, Circle, Left, R1
A Research Mode will now be available on the options screen
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