Great game, I've always wished looping games were more visual and I love how much you did with a simple map. Can't wait to see the rest!
A couple suggestions that might make things more smooth:
1. A little more easy to use path editor. the scroll bar is a little wonky, but you could probably have it expand to multiple rows.
2. It would be nice to save parts of paths in the path editor (like a first room path, plus a second room path)
3. It's a little hard to tell where the path disconnects, would be nice to have a better idea of that in the path editor (maybe by highlighting where you're editing with a yellow path?)
4. It would be nice to have a little more juice for the speed up. Like a lot or unlimited 2x and recharging 3+x.