Press the "~" key to open the console in-game, "help" shows several cheats, including "rich" which can be fun to mess around with mechs once you've beaten the game a few times, or if you need practice with a specific mech combo, but want to buy the extra move and hp.

Effect	Code
Add event	event [name]
Add incident	incident [name]
Add invasion event	invasion
Changes resolution of the game window. Specify resolution in pixels. Minimum resolution 800*600.	resolution [width] [height]
Clears all achievements in the gog version of the game.	gog_clear
Clears all achievements in the steam version of the game.	steam_clear
Gives message saying no longer in release version	unlock all
Gives you 1000 rep and 30 power cores	rich
Kill all enemies in the city	kill
Refresh lua scripts	reload
Set the current day	day [number]
Test animation	anim [name]
Test animation (on board square)	sanim [name]
Toggles between music version 1 and 2	musc_version
Toggles debug mode	debug
Toggles popups	popups
Unlocks all achievements	unlock ach
Unlocks all pilots (Does not give the player secret/special pilots)	makeitso