I attended Green Campus, Green Hackathon in Otaniemi at 24 and 25 of May. I have to admit, it was quite of an experience. Lots of pizza, coffee and coding. First, we were struggled to come up with any concrete idea to implement. In the end, we came up with a idea of a game. A game where user tries to guess the real world statistics and information. The aim of the game was simple shock user with really interesting facts and make them aware and teach them something at the same time. 48 hours after we completed Green Guess. The aim of the game is to guess statistics correctly by playing interactive charts and HAVING FUN!!!