This was my first Level, based on what could an Dr. Mario World Level could be,

Sorry if it's a bit RNG, but hey, it's pretty fun, and challenging!

1;Shell on!;3;53;8,16/-1,16;1,0,9,7;2,1,4,1;1,0,9,7;2,1,4,1;2,1,2,1;1,0,5,7;2,1,2,1;1,0,5,7;1,0,2,7;2,1,5,1;1,0,2,7;2,1,5,1;2,1,1,1;1,0,1,7;2,1,1,1;1,0,1,7;1,0,4,7;2,1,6,1;1,0,4,7;2,1,6,1;2,1,2,1;1,0,0,7;2,1,2,1;1,0,0,7;1,0,3,7;2,1,3,1;1,0,3,7;2,1,3,1/10,4,2,6,3,5,1;0;0;1