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Micro Maze is a simple Pacman-style game. You roam the maze, eating as many radioactive dots as you can, while keeping an eye open for the pursuing monsters. If you manage to clear one maze of all the dots, the screen clears and you move onto a higher level - with the monsters getting quicker, and much more likely to catch you. That's all there is to it - there are four levels of skill and you automatically move onto the next level as you clear the screen. You also have a choice of three mazes.
I found this game surprisingly enjoyable. Its best friends would hardly call it sophisticated, and the graphics are somewhat on the simple side. But it is surprisingly addictive and certainly worth a look if you own an unexpanded Jupiter Ace.