Getting a 4.1 isn't the only requirement for badges. It just helps eligibility. The game still has to have some kind of goal, interaction or stimulation for the user. A grey box, unfortunately, has none of these. Remember, it's not just if a game is good or not.. It's this game versus every other game. Plus, what badges would there be? Besides sitting idle for a certain amount of time, which wouldn't award you on skill, just weather or not you have anything better to do.
Just to sum up what a lot of suggestions have asked for, and rate this up so a consolidated list of suggestions is shown to Chris:
-Crown Door
-Coin Gate
-Letter blocks
-Background mode
-Ratings
-Editing areas
Remember, if Chris can't see it, Chris probably can't add it.
4/5 of the highest rated comments are asking for badges, and many other comments ask for badges as well. Badges are given to good games which have a strong structure, rather than just a level by level platformer. Simply stating that it needs badges, or that it has a high rating won't get it badges. It just isn't a badge type of game.
The front page of the energy shop should have everything that you currently have energy invested in, please + this if you're like me and you're tired of looking through pages to find everything you're saving for
You know what's pathetic? So many people will write "press [+]" after every comment as if it's going to affect anyone's opinion of the comment. Make of that what you will.