Thanks, Sockbat, but I want a couple of more testers to test the level to make sure that it's fully "done".
Anyway, Daizo, here is my report:
Very good level! While I did struggle with it a bit, the length was perfect for a hard level.
There were a couple of issues, so here they are (note: These will be out of order):
Level Design Issues (Major)
The space where the Urchant is is kinda small for Mario to fit in (basically, when the Urchant is at left-most side, Mario only has a one block wide hole though go through). Although I know this is supposed to be a hard level, maybe you could revise it and make it a block wider?
That football came out of nowhere. I know you warned us about footballs from heaven, but could you put in some indication where the footballs are going to fall?
The player can get stuck here. Maybe put a block somewhere to help them out?
This is a tight fit for Big Mario to get through without getting damaged. It might be a good idea to either raise the muncher ceiling or to get rid of the right-most one.
This Urchant can sometimes come up before you are prepared for him. Again, some indication that he's there would be nice.
(The fish start at the left-most side) I find this kinda cheap, considering that some people might not have time to react to the fish swimming towards you. Maybe move the pipe slightly to the right?
Final big issue: that coin is not worth it as Big Mario. The Urchant is too fast for you to reasonablly get in and grab the coin and get out. Lowering the floor would probably solve this.
Level Design Issues (Minor) and Graphic Issues
A reward for getting up here and past the Chuck might be a good idea, even if it is just coins. Also, look at the slope; there are some minor cutoff between the wall and the slope itself.
Other than that, the level design is solid, and the anesthics are great! Nice work, Daizo. Fix those issues, and you'll be golden.
EDIT: Great, thanks to new pictures, this thread no longer makes sense. Fantastic. :/