Tamaru was a Le-Matoran vandal. He liked to chew gum and stick in on toilet seets so the next person who sat on it would be stuck to it! He also liked to go around and spray-paint leaves black and throw rocks at the Brotherhood of Makuta rock band's limmos.
On one ocassion, he hit Teridax between the eyes and knocked him out.
Tamaru would also walk around in a hoodie, get drunk, then throw up on other matoran.
Tamaru died when he gained the element of Barf and burped up his internal organs onto Nokama.