all you need to know is if you spawn outside type /tp @a -143 52 -792,ALL LEVELS ARE TESTED AND POSSIBLE, and only get 1 of each item at the end of the level. This is my first dropper map and i think i did pretty good. I may come out with another if I get enough likes on this map, and it will probably be much better and less repetitive. Also, this map has been tested for 1.10 but may still work in the 1.9 versions.