Triangle is less childish compared to Monkey as he usually more cautious, courageous, and series compared to Monkey. Triangle is also a person who is usually ready to fight and serious at times. He has shown some kind of leadership skills as he is usually the one that comes up with well thought out and safe plans compared to Monkey’s reckless behavior and ideas. (His friends with monkey and noodle neck nobody else)

Monkey is quite impulsive and reckless as Monkey is usually shown to make quick decisions without caution in mind or much thought put into it that can lead him and his friends into trouble and takes risky options as he makes mistakes quite often and choices that can be very dangerous and inefficient for himself or his allies. Monkey is also easily timid at times when fighting certain foes and situations where he is outnumbered or suprised by a creature (harmless or not).