Press [T] for talk then type:
MPGOD - Godmode
MPKFA - Full Ammo, Armor, and Health
MPHEALTH - Full Health
MPAMMO - Full Ammo
MPARMOR - Full Armor
MPCLIP - Clipping
MPPOS - Show Position on/off
MPCAMERA - Adjust camera angle
MPLIGHTSCAPE - Adjust Light Scape on/off
MPTELEPORT - Teleport to start
MPONFOOT - Walk
MPMECH - Use Mech
MPVEHICLE - Use Vehicle
MPMIMIMI - All weapons
MPTEARS - All weapons and unlimited money
MPBOYISUCK - All enimies destroyed
MPTRIGGERS - Cubes show actions
MPBIGGUNS - All characters carry big weapons
WORLD [Name] - Teleports to the selected world, where [Name] might be
01_Ambush
02_Quarters
03_MCA_Dock
04_Shuttlebay
05_LZ_Minotaur
06_Entrance
07_Avernus1
08_Airshafts
09_Comm1
10_Comm2
12_Comm3
13_New_MCA
14_Maritropa1
15_Depot
16_Slums
17_Lost_Cat
18_Slums
19_Rendezvous
20_Maritropa1
21_Maritropa2
22_Tram
24_CMC_Sec1
25_CMC_Sec2
26_Tram
27_New_MCA
28_Airshipdock
29_Airship
30_Research
31_Avernus1
32_Museum
33_Quarters
34_Energy_Plant
34_Spires
35_Command
35_Fortress
36_Elevator
36_Kato_Center
37_Gabriel