Heck yeah! yeah that's the end! It basically just lets you jump around the whole outside of the level. Also you're correct! F5 is a feature meant to be a bit abusable along with F9 (which returns you to your last F5). Of course, I had some other funner ideas of where to go with all of this, but I didn't have time to implement them.
I hope you had fun! I may make an update with more to do and less janky gameplay, but only if people really want it. I'm working on another game of mine right now which is a much larger scale project, I just wanted to do this jam cause it'd be fast and give me some experience.