Ultimate 4

The Ultimate 4 (アルティメット) are four extremely powerful grade Appmon in Digimon Universe: Appli Monsters. They are Leviathan's handpicked generals.

History
The Ultimate 4 were gathered by Leviathan to aid Knight Unryuji after he became L-Corp's CEO. They watch as Knight unleashes an L-Virus-infected over L-Town. They later show up to the Applidrivers after Eri Karan refuses Knight's offer of working for Leviathan.