One of those weird-ass hybrid games, only this isn't all that weird-ass. Combining mindless shooting with more mindless shooting generally makes a good combination. You also have to traverse mazes though! And there's these monsters that shoot fireballs at you and big guys that go "CLUNK CLUNK" and shoot rockets at you! ...uhh, shit, wrong game...

Another epic introductory tale!

"You have succeeded in the intrusion of the fortress"

"You have encounterd the 2nd 'Air Fortress'"