They really went all out on the retro wibe here, copying every god AND bad aspect of the old platformers. But forinstance, the reason enemys respawned on the SAME map back in the day, wasen't bechaus it was so fun.. It was useally from hardware limitations (or sloppy coding),cus no one ever wanted to kill same enemys on the same stage over and over..ever.. no map dosent help either... But for those hardcore retrofans out there with lots of patiance, im sure it's great!