CSS:
Level three: What is the landing spot at 0:07 doing there?
Level two has multiple major breaks:
Players can use the shell at 0:18 to block factory multiple Yoshi's. And Invisi-Yoshi is NOT what you want.
Also at 0:18 you can simply go back to grab an extra shell, and then bring a springboard to the Yoshi section. (You could from there on Yoshi-springboard over the level and use Invisi-Yoshi to get back from the ceiling.)
Also there is cutoff under the bullet bill towers at 0:16 and 0:18.
Also at 0:13 you can simply screenscroll the blue shellless koopa to fall in the hole, and jump on him rather than on the shell. This way you can keep the blue shell.
Level one:
*sigh* what's new here? It really looks like some old ideas were reskinned a little and that is all, none of these traps are too creative and things like triple P-jumps are NOT Kaizo but simply Pit, and boring too.
After downloading the actual hack and looking at it in LM:
Level one:
Boringly hard, and cutoff at the goal tape.
Level two:
Breakable as hell, I can keep a Yoshi and get a mushroom at the end.
Also cutoff, please fix this.
Level three:
The platform does no longer exist, nice!
The lava (screens 02-03) has a horrible palette, is this the case while playing or just a LM error?
Cutoff on the upside down water on screens 03-04.
Lame quadruple P-switch jump
Edit: I forgot to mention that I don't really like the name of the hack, there are loads and loads of hacks out there named 'Shell Puzzle', 'Shell Panic', 'Shell Glitch', 'Shell Abuse', 'Shell Pit', 'Pit of Shells' etc. etc.
Of course you should fight fire with fire, you should fight everything with fire.
Oooh look at my userbar!
Sadistic Designer - testing Pit without tools.