En Masse Entertainment made an appearance at E3 2010 with an impressive demo of their upcoming MMORPG TERA. If you weren't able to make it down to check out TERA at E3 a new video of the press demo from E3 has been posted over at GameTrailers. The video features a cut-down version of gameplay footage from the same press demo that we got to experience first-hand. The demo features group gameplay of five of the game's eight classes: the berserker, warrior, slayer, sorcerer, and priest.