Nice one :). It is indeed kinda goofy and simple, which fits the guy (or girl?). I would love for this guy to suddenly wipe your entire team xD. When reading your "gets a bit more serious for a while partway in", I started hoping there would slowly enter like an epic drum and overdramatic choir and such, but it's maybe for the better that you didn't and just stuck to making a solid theme. It's nice, simple, and goofy, fitting Gloo as a midboss! Especially the melody sound right at 0:00 is so funny for some reason. Well done :D