Marvin The Cube By: MJ Bros s.c. This will be a complete walkthrough guide with solutions and answers for the iOS and Android puzzle game, Marvin the Cube, by MJ Bros s.c. Walkthrough: Levels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 & 25: More coming soon!