Multiplayer bots + lots of graphical and balance improvements.

-Bots are now available for both Co Op and PvP. -New weapon: Mortar. It fires in an arcing trajectory and has excellent splash damage. -Added more drops to early game bosses. -You can now see a list of stuff you've unlocked in the pause and map complete menus. -Many projectiles are significantly faster. (Chaingun + scattergun in particular) -Sprayer does more damage. -Explosive and incendiary missiles now have better traills. -Gas giants are now animated. -New planet texture/shader on Ragequit. -Hangar and Options menus are much easier to navigate with a controller. -Upgrading a weapon now effects projectile speed and explosion damage/radius. -Improved dynamic music system on some maps. -New menu music. -Bombs now have trails. -Mines now spin slowly after you deploy them. -Improved impact effect for scattergun. -Many weapons have a bigger splash radius. -Gyrojet projectiles turn faster. -Missiles are more agile. -Increased visibility of flames when an enemy is set on fire. -Splitscreen now has its own button on the main menu. -Made phobos a little easier. -Reduced self damage on several splash weapons.