I wouldn't have too many problems with the level if it only had one star. The level's main route is pretty creative, although it is very difficult because of what I've bolded in one of the lines below.
What you gotta ask yourself though is if your gimmick's execution is actually.. good. I feel like I was only able to beat the level because I managed to look and walk into the right direction when I needed to by accident.
Some enemies in this level are placed in stupid ways. There's this one rainbow shell which will almost guaranteed hit you near the blue switch at the start of section 4. Another one above that can respawn in weird circumstances and strike you when you least expect it.
Most of the boos in the fence sections are placed unintelligently and make the area more stressful than it needs to be.
My biggest problem with this level comes with the secret star. It's like it was added just for the sake of having another star and ruining an otherwise, in my opinion, perfectly acceptable if janky and hard-for-wrong-reasons level.
The sign.. is where things start to go wrong. I don't see the point in making the star only available to Mario, or - if arguing the other way - including Luigi in the level at all. To start off, even figuring out how to get three of the dragon coins is a puzzle with a solution which you don't even hint at. I ended up looking in the editor just to find out I gotta get another shell and hit the pipe again for some reason. Usually I'd assume it to switch back to green. Having a different colour of switch here would've helped greatly.
Sidenote: 5 dragon coins in this level are 10x harder to collect than a 3-up moon. Think about that for a second.
The side-sections for the dragon coins add absolutely nothing to the level apart from a boring propeller block section and an useless ludwig fight without substance. I don't think any of this needs to exist. It's only dragging the level down for me.
Which is a shame because I kind of enjoyed the main part. Granted, I didn't get frustrated because I got extremely lucky and beat it without deaths (until I attempted to get dragon coins, that is), and I can see people having tons of problems with the boos in the final area, which are generating almost all the difficulty of this level due to being placed in a rather spammy and unintuitive way.
This level is far from perfect. The gimmick is nice but not executed well and there are moments where the level tries to throw a curveball at the player. Dragging focus away from boo-type hazards and adding different enemies to substitute them is a good way to balance out the difficulty.
3.7/10
Chad's Review wrote:You do have a pretty intricate layout here, but it'd only be enjoyable in a context where the player is given any warning and any time to adjust to anything. It's highly evident that the level wasn't made with the experience of someone besides the designer in mind.
I think this sentence sums the main part of the level up well, though I'd add players who like throwing their face against the wall to the target audience. I think I'd have given this a 6 or something myself if the 2nd star didn't completely ruin my enjoyment of this level.