This level in particular was kind of fun to optimize but man this design is lazy.
EDIT- I have absolutely no idea what alazeh did to this level but it is obviously quite interesting!
"Roingus" is a slang term some people use to refer to a jerboa, a little hopping rodent native to African and Asian deserts that some people keep as a pet. I have no idea where the term originated - my theory is that "roingus" sounds very bouncy, and jerboas hop around when they move. The word was stuck in my head when I made this level so I just slapped it on as a title, no further reason.