Tantei Gakuen Q - Meitantei Ha Kimi Da! (Japan) - Gameboy Advance - Adventure

Based off a manga series known in the West as Detective School Q, the story is about 5 young children who have the talents to become top detectives. They get invited to take part in some tests at DDS (Dan Detective School) which is run by the famous detective Dan Morihiko. Passing the tests, the 5 children joins Dan's Q class, the best detective class there is and starts an adventure full of mysteries.