Introduction: Minecraft PE: Human Canon
Step 1:
Build a tall structure like this (the higher the structure the further you will shoot)
Step 2:
Build a small square at the very top of the structure.
Step 3:
Build an even smaller square coming off one of the corners
Step 4:
Build a small tube-like thing (this tube should be no more than 5 blocks heigh)
Step 5:
Now fill the tube with any mob (except endermen). There should be at least 100 mobs in the tube.
Step 6:
the mobs should be visible from outside the tube. Once this is done stand an the platform next to the tube and quickly run into the mobs.
Step 7:
You should shoot of the platform.
Step 8: Here Are Two Tips
Try pushing mobs into the launcher (the tube)
Step 9:
Or try making the platform slightly longer and see what happens