Urban Chaos (PSX)

Level Select (PAL):
At the new game screen, press L1 + R1 + Select + Start.
Go to the map screen and all levels are unlocked


All Weapons & Energy (PAL):
During play HOLD Triangle + Circle + Square + X and press Right.


Refill Health Without Medic Kit:
You can do it anywhere, just find a bench and turn your back facing it
and move backward, until you sit down. And your health will slowly recover.