Honestly the build system is too limiting, the sandbox still limits start build location which is honestly so dumb. the Builds felt so flimsy and inconsistent and super oppressive as you cant make your own targets.

Fun if you dont mind the repetitiveness

In theory this game could be awesome.
It looked amazing!

BUT:
- It's non deterministic aka totally random. The same thing might give you 73% on one try and 98% on the next one. The physics are all over the place and do not work as you would expect. Unlike the bridge builder games, you will need to hit repeat a lot of times to get 100%.
- The controls are non intuitive. Hentai games figured out the control scheme decades ago, why this game uses it's own scheme is beyond my understanding
- It's boring. doesn't look like it from the pictures, eh? But it really is - after the first level, there is nothing entertaining in seeing the destruction anymore. Sound effects would help a lot here.
- Lots of small things like it not saving your highest score but the last recent, using mouse movement in levels but wasd on the map, not being able to save during a level, lots of small things that are missing

They really should've taken community feedback and tweak the game.

tldr; Game is boring and too random. If you want to 100% everything, you'll have to try it over and over again.