Zim Greenleaf's Laboratory

SynTax
[...] you find yourself shrinking until you are small enough to fit into a waistcoat pocket and can crawl under a door to the game playing area. This consists of eighty 36 (foot) tiles each of which is inlaid with precious stones to depict a different herb along with its Latin name. Fortunately for non-botanists the common name appears along with your score and number of moves made at the bottom of the screen. There is also a Persian carpet and, standing on this floor, various huge pieces of ornate furniture.

Your main object is now to explore as much of the laboratory as possible, dispatch anything which gets in your way and collect as many valuables as you can. Then you must find a way to regain your rightful size and get your booty back to your own dimension.
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