Fun game! I was trying to get high enough to unlock new buildings, but unfortunately the game crashed before I got any. Also, there's an infinite money glitch when just clicking on the buy scaffolding-button.
Oh, right, that was for troubleshooting and I completely forgot to take it out ... ^^
Yieah the unlocks are way too late (it's every 10th level), and it's currently a bit annoying to even get this far.