Cheat List:
Press ~ to drop down a console menu. Then type "enablecheats" and enter the following cheats:

* Infinite Health: god
* Full Ammo: allammo
* Add Bots (replace # with an actual number of bots): addbots #
* All Weapons and Max Ammo: loaded
* All Weapons and no Ammo: allweapons
* Statistics for Audio: stat audio
* Alters field of view (replace # with number of degreees): FOV #
* Change Player Name (replace "name" with actual name): setname (name)
* Set Resolution and Color (replace numbers as desired): setres 1280x1024x32
* Change Teams: switchteam
* First Person View: behindview 0
* Third Person View: behindview 1
* Kill Yourself: suicide
* Display Stats: stat all
* Turn Stat Display Off: stat none
* Exit Game: quit
* Exit Game: exit
* Stop Time: playersonly
* Display Game Statistics: stat game
* Kill Bots: killbots
* Display Network Statistics: stat net
* Toggle Full Screen and Window Mode: togglefullscreen
* Disable Clipping and Gravity: ghost
* Enable Fly Mode: fly
* Disable Fly Mode: walk
* Teleport to Crosshairs: teleport
* Open Map (replace "mapname" with the actual name of the map): open (mapname)
* Change Gravity Setting (replace # with an actual number): setgravity #
* Change Jump Height (replace # with an actual number): setjumpz #
* Change Gameplay Speed (replace # with an actual number): setspeed #
* Display Frames Per Second Stats: stat fps
* Set Slow Motion (replace # with an actual number): slowmo #
* Spawn Redeemer: summon xweapons.redeemerpickup
* Spawn Assault Rifle: summon xweapons.assaultriflepickup
* Spawn Avril: summon onslaught.onsavrilpickup
* Spawn Bio Rifle: summon xweapons.bioriflepickup
* Spawn Flak Cannon: summon xweapons.flakcannonpickup
* Spawn Grenade Launcher: summon onslaught.onsgrenadepickup
* Spawn Ion Painter: summon xweapons.painterpickup
* Spawn Lightning Gun: summon xweapons.sniperriflepickup
* Spawn Link Gun: summon xweapons.linkgunpickup
* Spawn Mine Layer: summon onslaught.onsminelayerpickup
* Spawn Minigun: summon xweapons.minigunpickup
* Spawn Rocket Launcher: summon xweapons.rocketlauncherpickup
* Spawn Shield Gun: summon xweapons.shieldgunpickup
* Spawn Shock Rifle: summon xweapons.shockriflepickup
* Spawn Sniper Rifle: summon utclassic.classicsniperriflepickup
* Spawn Goliath: summon Onslaught.ONSHoverTank
* Spawn Hellbender: summon Onslaught.ONSPRV
* Spawn Instant Kill Shock Rifle: summon xweapons.supershockriflepickup
* Spawn Manta: summon Onslaught.ONSHoverBike
* Spawn Raptro: summon Onslaught.ONSAttackCraft
* Spawn Scorpion: summon Onslaught.ONSRV

Cheat: Hidden Voice Commands
* (Bot name) Suicide: Bot will commit suicide
* (Bot name) Dance: Bot will dance
* (Bot name) Jump: Bot will jump up and down
* (Bot name) Get out: Bot will leave the vehicle they it is in
* (Bot name) Taunt: Bot will taunt opponents

Cheat: Skip Match
Press ~ to drop down a console menu and type in:

skipmatch

Note: In order for this to work, cheats have to be enabled and you have to hit fire to start the match.

Unlockable: Particle Effects Showcase
Within the Maps folder for the game, locate ParticleExamples.ut2 and open the file. You'll be in a level that shows off the particle effects of the game.