This is probably one of my best hacks, and I have been working on it for almost a year. It used to be a hack about Waluigi, but I recently started another Waluigi hack, and decided to change the player of this hack to Mario a little while after. Anyway, here's the story:
Mario is enjoying his vacation, when suddenly he gets a letter from Peach telling him to go to her castle. Peach informs Mario of some rumors going around about Bowser making a secret weapon, and asks Mario to go investigate and find out if those rumors are true...
Overall, the design is lacky: it's okay in terms of ground placement, but there aren't many obstacles to avoid. Some zones are dead, there are no enemies at all, and it's a bit boring to go through zones without enemies to spice stuff up. The rest is okay-ish, maybe the puzzle levels can be boring, but because of the reason said up there: no enemies. Overall, it's not too fun, but the last level manages it to be memorable.
Aesthetics are more or less good. Sometimes it's weird in FG placament (read: first levels), some other have bad palettes (either bad or eye-searing, like the last castle). Could've worked a bit more overall.
As only issue worth of mention, music breaks on accurate emulators.
Overall, it's not very fun. Those dead zones were too dead to be fun, they really bring the hack down. 2/5.