So I thought I'd share.

The game is called 'Mass Effect Roulette' and is pretty straight forward. You'll need two six sided dice and a ten sided die if you have one (who am I kidding you have one). Start a gold match, then roll the D6—that's your class. Now roll the d10 (or the 2d6 subtract 2, rerolling for zero). That's your sub-class. If you land on a class you don't have you must pick the nearest adjacent class. In the event of a tie, player chooses.

If you get an entire party doing this, hilarity ensues. There's also the 'hardcore' version. To do that, once your class is selected you go to weapons, roll a d6-1 (again, rerolling zeroes). Take your available weapons and roll within that range as best you can (We typically had between 12-13 weapons in a slot. Honestly, a d20 might be the best bet for this, though it'd take a few rolls) You can roll again after your first selection for a second weapon if you want.

When we got really bored, we added this rule:
Volus Wild: If a player ends up with a Volus, he may force another player to choose a Volus. It must NOT be the same class. Note that the player forced in this manner may in turn force somebody else to be Volus until you end up with an all Volus team.

I really encourage this to be played in Gold, because it forces you to use classes you might otherwise shrug off and find out how to use them effectively: On Silver it's too easy, on Bronze it's just boring. If you're feeling gutsy Platinum is available but you are a braver man than I.

We ended up having a lot of fun with it, playing classes we'd normally never touch and finding out some classes were better then we thought (two players managing a 140k game with dual Asari Vanguards was pretty surprising).