I recently got back into this project and built a level editor for my game, you can watch a demonstration video of me building a level and running it in the game.
I remember seeing this a while back and thinkin' it looked interesting - the engine looks really solid. Looking forward to seeing more - keep it up dude
Looking real good so far.
Only thing is that the player sprite is ordered in front of an obstacle too quickly during jumps, but as it was some time since you uploaded this, you might already have fixed that, I guess.