Tally is a robot made of light gray silver metal. He has light yellow robotic eyes and his nose looks similar to a faucet. His shape and appearance is similar to Squidward's because they both share a similar nose and head.
Tally's only appearance is in the episode "Company Picnic." He was one of the two robots created by Plankton in order to make Plankton's picnic better than Mr. Krabs' picnic by making them offer "fun" games that are available at Plankton's picnic. In the ending, Tally and Simmy turned out to be robotic holograms used in Plankton's scheme.