Harvey the Cube: Lost Your Marbles

Harvey The Cube: Lost Your Marbles (more commonly known as Lost Your Marbles?) is a 2002 Flash-based cursor maze game. Players guide Harvey, a small cube, through a series of increasingly tricky levels by moving the mouse - collecting all marbles before time penalties kick in. Each stage scrolls in a set direction, indicated on screen, with the camera bouncing off map edges to keep you on your toes. Clicking the mouse begins each round, but touching walls or moving obstacles costs a life. Losing all lives means it's game over. The player needs to complete all 16 levels to win - bonus points if they can do it with a high score.