I was wondering if this is a good place to playtest a game prototype...

I need feedback about the good, the bad, and the ugly about the game I am working on.

Negative Space is a very casual sidescroller platformer, where the two main mechanics are inverting gravity, and inverting black & white... Making it so the background become platforms, and platforms become background.

If you think it is a good idea to post here for feedback, I will post a game prototype in a few hours, I am doing some levels right now. (I only have the mechanics done).