Well it aged questionably first and foremost. Otherwise, the songs are recreated pretty well, it looks mostly alright for an early Genesis title (Cavern and The Enemy Hideout are ugly though), it's not too hard, etc. It's mainly just bogged down by doofus gameplay. Open doors and check in other spaces! Sometimes there's nothing, sometimes there's an enemy, sometimes there's a kid! Yay...? At least it's pretty short, but it does ultimately fail to be amusing by the halfway point or so and just begins to plod along. Until he turns into a mech for some reason? Does that happen in the movie??