Challenge Me: Brain Puzzles for Nintendo DS/DSi. This cartridge-based game is designed for a single player and was published and developed by Oxygen. It was released in the UK on March 27, 2009. The game features a static screen camera. Relax, play, and improve your mind with Challenge Me: Brain Puzzles. Its extended gameplay and variety of features offer a chance to test yourself while having fun. Guaranteed to stimulate and surprise with hours of gameplay, it's a relaxing and entertaining way to keep your mind challenged and stimulated. The game includes two number-based games: Sudoku & Picture Logic, providing hours of fun and relaxation while potentially improving your mental skills. Challenge Me: Brain Puzzles Sudoku is a challenging and entertaining.