coins
*Working as of 1 December 2013* *Warning* I woke up this morning to find that I couldn't connect to Campus Holiday (but somehow I've been unbanned from Campus Life) ....
This game, like ME3 Multiplayer, forces you to buy RNG packs to unlock items. Soooo much easier to do when you have infinite (well actually 999,999,999) coins/money to unlock all.
UPDATE: As of November 2012, it appears that this hack has been patched and no longer works. Backflip has modified the gamerules file so it's no longer editable (and it.