Fisher-Price Imaginext Dino Fortress The Imaginext Dino Fortress is packed with adventure at every turn, and kids are the ones to make it happen. The Imaginext Dino Fortress provides hours of creative play as kids recreate the time when dinosaurs roamed the earth. 3 Power Pads bring the Dino Fortress to life. Turn Warrior on Power Pad to see Dino spikes light up as the head rises to reveal a lava launcher.