-The levels in this hack overall are very flat and boring to play through.
Some of them were also very random, and looked like no real effort was put into designing them, honestly.
-Slowdown and sprite memory errors appear frequently in the hack.
-After completing some of the levels on World 2, the player warps to Yoshi's Island, and gets stuck in level 0/Endless bonus room. Not really sure about why this happens, though.
-There were a lot of 3-up moons and 1-ups that required little to no effort to collect. I recommend hiding them better.
-Same goes for Secret Exits/Yoshi Coins.
-Layer 3 tides disappear on "yoshi's water pad" when I hit the message box, making it almost impossible to complete this level (it's still possible with a cape). Remove the message box here.
-There's a lot of cutoff and minor graphical glitches in the hack.
-Floating/stacked munchers. Remove some of them or change their graphics to floating spikes (I recommend using custom blocks instead of changing their GFX, though).
-Blind jump here. Add some coins (or anything that indicates that there's ground below) to guide the player.
-The file select cuts off the title screen letters. The palette of the '1' in 2013 is also weird.
-Silent bullet bills. I suggest removing them, as they make this section really annoying to pass through without taking a hit (this isn't the only level they appear, by the way).
-The piranha plant goes behind the foreground here. I suggest removing the piranha plant or the tiles above it.
-While this is not exactly a removal reason, I recommend changing the overworld and the title screen.
-The initial FG/BG positions
are wrong in most levels. This can cause blind hits in some of them.
This hack violates the Hack Submission Guidelines
4, 7, 9 and 12.
I recommend reading the Hack Submission Guidelines, AxemJinx's level design guide
/aj6666's design guide
and watching the "what not to make"
videos (and maybe playing some of our accepted hacks