Open the door, get on the floor, everybody shoot the dinosaur
As if talking dinosaurs and flesh-hungry lizardmen weren’t bad enough, your time-traveling heroes will have to battle a weird, wild army of invaders. Malevolent Manborgs, lethal Lazer Raptors, the terrifying Tri-Cannon (a bogus hybrid of Triceratops and minigun), and the diabolical Dictatorsaur.