Anything a killer whale can do, Kugo can do, even onshore. For example, he can create an intense sound wave attack that paralyzes his opponent. He also has above-average strength, coupled with a large size. He is noted to be an excellent swimmer as well, due to his orca-based physiology.
Having the body structure of a marine animal, Kugo is vulnerable to dehydration. As such, he often carries a plastic bottle of water in order to rehydrate himself when needed.