Gameplay : BrainRequired is a single-player first-person puzzle-platform video game created by Geckoo (aka MajorTom). At first, this project was an entry for the 35th LudumDare event which received many positive feedbacks (this game is ranked in the Top100). This project is innovative because the player can switch dimensions, by dissolving some elements, revealing others, trying to reach the exit (and in a smooth transition). When a dimension is switched, all its artefacts disappear, then opposite colored elements are recomposed (and viceversa). At start, the gameplay is a little bit disturbing and the player must increase his skill so as to solve each level. This game contains 40 levels and other sequences.