Really interesting idea, makes me want to use this for my next gameJam :P

P.S: I played your game in my stream today if you want to see my live reaction!

Interesting idea - kind of like mad libs for game development.  As a game, I didn't find this very fun, but as a work tool, I thought it was really cool.  I see that you allow the player to rotate to the underside of the environment.  Perhaps that's an opportunity for a different type of idea forest?  

Took me a minute to figure out the controls and the music didn't work for me (Chrome browser), but it had a really cool vibe and I liked how you set up the environment.  Minimal, but quite effective.

Great work and cool entry!

Neat idea!