"Kabutops swam underwater to hunt for its prey in ancient times. The Pokémon was apparently evolving from being a water dweller to living on land as evident from the beginnings of change in its gills and legs."
If Kabuto was a more reserved Pokemon because of its appearance, Kabutops is what happens when you're done being reserved. Its sickle like arms can slice through a lot of things, and its extra mobility means you're not going to get away from it that easily.
Kabutops' Basic Attacks are Scratch and Fury Cutter, while its Special Attacks are Rock Tomb, Ancient Power and Water Pulse.