Well on theme as you are literally scaling a building. The art had me confused at the start as it looked like a top down view for me instead of the head on facing of a skyscraper.
The movement is fun and I like the puzzle like aspects of having to jump when you get higher.
I did encounter some bugs when trying to jump and still being a bit too low so I was jumping into a solid block anc getting stuck.
The music has a nice vibe to it and makes you want to go fast !
Overall great job !