Yeah, I have no idea why they decided to use go with that soundtrack. That game is actually a reskin of the (currently undumped) Zook Hero 3 by Sintax (apparently they had some behind the scenes ties to Vast Fame). They must've been out of their minds when making that one since it is kinda nuts. Megaman 1 spikes, really strong knockback, a glitch that eats your jump if you press the d-pad and jump at the same time, super bulky enemies, no continues, etc.
Their favorite music to borrow is from some Lemmings game. It's alright, but they often try and come up with something better for their fancier titles