Very cool game! The idea of making levels and then trying to pass them is really innovative. The game has good replayability and challenge at the same time. You can pass levels quickly or you can try to beat your best time. Global leaderboard is must-have for this game. Also you can snap character's neck in main menu (nice feature xD). There is a bug when you can move player with obstacles in editing mode (kinda cheating), but it's not game-breaking and it's ok. Sandbox as the last level 10/10
Also be sure to rate my game too https://itch.io/jam/blackthornprod-game-jam-1/rate/319192