You can summon a giant slime tornado at any point in the game by activating the summon command. To summon a slime tornado in Minecraft, enter the command code: /summon slime for specifications on the size and number of slime tornadoes you want to summon.   If you want to summon a slime tornado in another location different from where you are, you can initiate the command code /summon slime xyz . The xyz represents Minecraft general coordinates and it is expected that you have a rooted understanding of these coordinates before using it.