I can really appreciate the target 0000 appears to be aiming for, providing a sort of throwback style of tight and simple platforming… but one that’s also in no way simple. You’ll repeatedly enter a level, need to orient yourself on the obstacles between you and a doorway somewhere on the screen, and then get to it and back without dying. Quickly you’ll find this is often much tougher than you’d expect. The thing is while there are stages that feel like they hit the sweet spot of being a decent challenge there are others where it feels a bit more cheap. Controls that are just a bit too loose, the large lethal area on elements like spikes that you simply need to understand are there since the game has only 2 colors, and some initial confusion as the game really gives you zero direction are frustrations. Regardless, if you like a challenge on a budget it should have some appeal.