The Sequel Confirmer

The Sequel Confirmer is a detector that scans video games and says if it's a sequel or not, it appears in Episode 105: Most Wanted Video Game Sequels where it is used by Scott Wozniak.

In Most Wanted Video Game Sequels
At the beginning of the episode, Scott Wozniak introduces The Sequel Confirmer, he then proceeds to scan a copy Metal Gear Solid 2: Substance, where it confirms it as a sequel.