All weapons with maximum ammunition (for host only)
While playing a game, press [~] to display the debug menu, then type "$testcheats=1;". Then, open the debug menu again and type "giveall();" to get all weapons with 999 ammunition.
Chat in color
The game's chat is IRC-based, so it is possible to talk in color. Press [~] to open the console window, and type ircclient::send2("\c5"); -- you can replace "5" with other numbers for different colors.
Partially repair an enemy generator, attack it, then repeat.