So basically a boss thats half rotten so skeleton showing and half zombie unrotted and it drops an orb that when pressed spawns a hord of zombies as reinforcement

This already exists, If two members type the exact same number within 5 3 seconds of each other it will only count the first one sent. if someone tries to prefire a number that isnt something that will be sorted by this as they are trying to say the next number at the exact same time as the person typing the previous number.

Thinking of adding this in a future update, potentially as a boss that lives in the caves.