I just played this hack, and I thought it was pretty good overall. The first world started off pretty easy, but then I noticed the subtle progression in difficulty, but it didn't become too hard. The graphics choices and palettes are also pretty neat, and I even like how each level introduces a different set of enemies. I felt like they were used pretty well. I haven't really seen any hacks that feature Waluigi, so, if I'm not wrong, this might be able to become the first successful hack to feature him, and I know for sure that this hack has the potential. I can tell you put effort in this.
Unfortunately, there is one large flaw to this hack so far, and it relates to the usage of some custom stuff, such as the wall jump and blue rope. The problem here is that these weren't really used to their full potential. In fact, they weren't even used that much at all. There were times while I was playing this hack, and I forgot that the wall jump mechanic even existed. Basically, I want you to add more setups that actually make use of the wall jump, but I also want them to be more creative as well. Remember, just because there's custom stuff in the hack, that doesn't make it any better. It's how that stuff is used. Also, on a slightly related note, I wasn't really a fan of the straight fireballs, but that's just what I think.
Overall, I thought this hack was pretty nice, but I believe that some custom aspects weren't really used that well. I still can't wait to see more of this! Good luck!
Formerly known as nick 139
My YouTube channel