Earlier this week, we got a glimpse of Super Mario Galaxy 2's co-op mode in action from a screenshot taken off the official Japanese site for the game. While it wasn't much to go on, we were, never-the-less, hopeful that the second player would have more to do this time around than just shoot stars at enemies. Joystiq.com recently had the opportunity to get some hands-on time with the co-op mode, and it sounds like our hopes weren't entirely unfounded. In addition to having more direct interaction with the enemies, your star buddy will also be able to more directly support Mario in his adventure across the galaxy.