SharkMan.EXE

SharkMan.EXE is the NetNavi (short for Internet Navigator) operated by Maysa/Commander Beef. SharkMan.EXE is quite powerful, with the attack "Fin Cutter". He is only seen when Commander Beef is there even though he is also Maysa's Net Navi. This to keep Commander Beef's secret identity safe.

Description
SharkMan looks, of course, like a shark, but has no tail and instead has two legs, on which he can stand and fight. He is not a particularly large Net Navi, and his hunched back makes him look even smaller. But he is powerful, and in Episode 5 of MegaMan NT Warrior, when encountering Megaman and Glyde, he leaves a good impression on them, with Megaman telling Glyde that he thought that SharkMan "was only a legend". His main attack is fin cutter in both the game and the cartoon series.