For those that don't know, #MindOverMagnet is the game from the man that makes #GMTK videos on YouTube.
Over the last two and a bit years he's been starting from scratch and making a videogame, whilst documenting the process.
So don't expect the second coming of Braid here, but I think it's worth playing if you're interested in development and what not.
And as per everything with regards to #GMTK, the attached video series is absolutely worth your time.