I can't recommend Pushmo any more than I already do. If you have a 3DS, go download it!
I'm not going to lie, I found the tech demo really quite boring.
"Epic need to start making more diverse games"
I have to disagree, Epic have already demonstrated a willingness to try out new things and take risks. Go check out Infinity Blade and Fortnite.
Brilliant!
Mighty Switch Force - yes!