Feel free to moderate!
> The area where you have to jump on Vertical Red Parakoopas is a bit too complicated for the first level of the hack, for a hack marked as Easy the first level shouldn't be complicated at this point. As well for the spot where you need to get the Balloon is a bit complicated to those that aren't familiar with this sprite, they can easily get hurt by the Boucin' Chuck near there.
>    Areas with one-tile high ceiling can kill the player when big - it'll push the player and eventually kill.
> The timer of the first level could really be increased, so the player won't feel that (s)he has to rush to beat this level. (Of course opinions about the amount of time varies, but you need to set timers more wisely)
>   Such spots like those aren't really fun to pass from, mainly when they're repetitive.
> The hack is too short! It only has two levels done, and the Submission Guidelines for Hacks state that you should avoid submitting too short hacks.
* The intro level could have another sign at its begin, I simply didn't have any hints I was supposed to proceed to right to eventually read the intro message.
> Level design; It's just okay overall. But it could be more worked on for the future.
I can't say it was a nice hack at all. Way too short - not to mention the amount of bad issues you could've avoided to do. My advice for now is that you take your time remaking your levels a bit and get testers as well, so you can hear to general criticism and opinions! I don't have more to say about this hack to give more constructive feedback, as I've stated, the hack is very short. :/
For now I think your hack has to be denied, not only for the bad issues I've mentioned but because it's really short to evem be enjoyed.
Difficulty could be Normal, but if the first levels get reworked on I'd change it to Easy again.
My hack thread