Game design! Yesterday I spend almost all day watching videos and reading tuts about level design, game progression and game learning process about your own game (including watching again the very excellent and hilarious Sequelitis - Mega Man Classic vs. Mega Man X episode) and started making some drafts (I know with all the power Unity has to develop prototypes immediately on the editor, I might have been doing there, however I found that I prefer to do it on paper, as doing in the game engine makes me iterate over the level way too much - AKA I play too much my own game and loose time and momentum  )