Overall, it was fun and very challenging, although I have to agree with what Sergio and xZilas pointed out. I had a hard time getting past x972y1000, which required too much precision for my tastes (maybe cropping the sides of the left cross by just half a tile?), and the shooting enemies in x972y1005 made that screen way too luck-based for me, since they don't follow a completely predictable pattern. I was able to pass the latter without cheating after several tries, but it was only because I lucked out and didn't get shot in the face while jumping over the green bouncers. Don't know if there's a sure-fire winning strategy for this.

I would also suggest to replace some (or all) of the save points with multiple invisible auto-save shifts (with a square collision mask), so the player doesn't miss the checkpoints so easily. I didn't feel this issue particularly aggravating, though, since the challenges I had to retry whenever this happened weren't so hard.

Still, besides those specific issues, the area was very fun (some of the other screens were quite challenging, but not to the point of being demoralizing) and the screens looked pretty good!