Everything phaser/2099 edition related is in devassets and devjs. the normal assets folder and js13kjs folder should be left alone, they are for posterity. If you want to help port the game to phaser, use these examples. Pay close attention to the p2 physics examples. P2 is harder than the standard arcade physics, but I think the benefits are worth it. Also, P2, and Phaser's built in P2, were recently updated, so STEM-2014 can't be used as reference material anymore.
Everything phaser/2099 edition related is in devassets and devjs. the normal assets folder and js13kjs folder should be left alone, they are for posterity. If you want to help port the game to phaser, use these examples. Pay close attention to the p2 physics examples. P2 is harder than the standard arcade physics, but I think the benefits are worth it. Also, P2, and Phaser's built in P2, were recently updated, so STEM-2014 can't be used as reference material anymore.