This is quite fun! It took me a bit to figure out how to use the portal gun properly, but it was fun to use. I really liked the rocket launch movement as well, and I am glad that was utilized a lot. I did notice that portals can be created when the portal surface isn't visible, and I don't know if this was intentional. Specifically, on the fourth level I placed the high portal from the location of the lower portal, and it worked despite me having to shoot through a platform.