So just made my second level.
If anyone wants to check it out:
It has shortcuts and more than one way to finish it.(although you have to find it, and may prove harder than you expect. It's not an easy level but not unfair.
Played your course for the Lost reference alone (and left my own Lost reference for you in a comment), and I'm glad I did! It's got a fun concept and it's sufficiently tricky but not oppressively difficult. Good job! It didn't necessarily blow me away, but I also don't have anything negative to say about it. Looking forward to seeing what else you do!
I've been trying to design levels which progress in difficulty, and introduce new elements to the player in a similar fashion to how Nintendo design their courses.
My first World is using standard Super Mario Bros elements.
My second World is using those elements not originally in Super Mario Bros, but I am starting to think the difficulty has increased too fast.
Anyway, I thought I'd share them here in case anyone is interested...
I like the concept you're working with a lot, so I went through and played all of your courses (so far)! I ended up starring all of them except for 1-2, which I felt was kind of bland and didn't really "flow" as well as the rest of your courses; everything just felt too scattered and "loose" in that course, if that makes sense.
The rest of them, though - great job! Again, I really dig the overall concept of this series of courses and I like how they have a lot of visual polish on top of being fun and intelligently-designed. The time you clearly spend on refining your levels from a visual standpoint and making them look "official" really makes a difference IMO, and it helps your courses look a great deal more authentic (in an official Nintendo sense) than all the run-of-the-mill, let's-place-random-elements-in-random-places courses out there right now.
All that said, I very much agree with your own criticism that the difficulty ramps up way too quickly in the World 2 courses. It's only World 2 (of how many?), but based on how simple, straightforward, and "big picture" your World 1 courses are, the W2 courses feel like they should be in World 4, maybe 5.
I hope you continue this series and see it through to the end, whatever that is - I will certainly keep playing them!
If you guys could check one, some, or all of my courses out and provide some feedback as well, it would be much appreciated!
Step by Step... - 6583-0000-001B-F23D
The Prince's Morning Swim - C265-0000-0027-A3FC
Fun with Super Leaves - 6305-0000-0036-BF85
Contra: Mario Corps - 1599-0000-0036-CE11
Big Problem, POWerful Solution: CD31-0000-003B-80F8