For admin powers
Try this guide im not sure if the banning is what you want specifically.
You could give admin powers to a specific person by setting a overlay to show up for people with a specific name. The admin would need to have that specific name when joining a game to get the overlay. You would also need to wire the overlay to a item granter to give the fish. Sorry if this is confusing i’ll try to give a better explanation if you need.
Here’s what some of the block code would look like , then in the “do” part you would broadcast a message to show a overlay.
To recreate other elements of Fishtopia: