Originally Posted by
IH8YOU
It's more enjoyable to get it through gameplay - but if you don't play online much (or enjoy playing online) I suggest Ubermall with 2 people.
One smashes into walls while doing "laps" around the fork in the track - to get their energy critical - the other flys over the weapons pads (doing laps around the fork as well) and kills them. You can't pick-up from the same pad twice consecutively - which is what makes Ubermall forward so great - you can just cruise the fork - taking shots when you can...