Fun game :D tried to build minimally so when I fell down it hurt a lot to go back up, lol
I like the building mechanic, it adds a cool twist. But at the same time I think it could use some more work to expand it. Right now, you can build whatever you want and it only impacts your score. I think if there were some more puzzle elements in the level (like hazards you have to avoid) and less points to build with, this would turn it into a very interesting game mechanic where you have to plan out your route through difficult sections by saving as many points as possible for further sections.
Overall, excellent game :D well done!