Something's off, and it's up to you to find it.
This is you classic find the different color game. No, this isn't original, no, this isn't the best implementation, yet what it does offer is the fact that it was made during one day's worth of Uni tutorials and lectures. You see, no one believed me when I said Uni (currently) is a walk in the park and I aimed to prove them wrong by writing a game from start to finish during Uni lessons whilst still comprehending what was taught given by the fact that I got full marks in the quizes handed out at the end of each lesson. I.e this game was made in ~3 hours, enjoy it for what it is.