Creative, innovative platformer, the only double jump in light is neat but the green light takes the cake; mechanics wise the game is ingenious, level wise not so much, the scenes are too long with no checkpoints and with long transitions between deaths and even longer dialogues, check out games like Super Meat Boy that put you back in the game the second you die. Those blinking lights killed me most of the times, there is no feedback signaling when they will turn off and each jump is a gamble. Those little nuisanses aside the game is amazing and i recommend everyone to give it a try if you are into creative platformers.
Theme, in several forms, only one light, only one wall jump, only one double jump and only in the light.
Originality, the "only one light" concept has been thrown in several games but this iteration is unique in execution.