[[File:Greenhouse Classic Version.png|thumb|left|The Classic version of ''Greenhouse'']]
The player controls [[Stanley (Donkey Kong 3)|Stanley the Bugman]], and the objective is to spray inchworms and spiders that try to eat the flowers in a greenhouse. The inchworms crawl along vines on the top screen, while the spiders crawl along webs on the bottom screen, and the player will have to try to hit them with a [[insect repellant|spray gun]] before they reach the flowers. A ladder connects the two parts of the game (which otherwise offer almost identical action). The player receives a [[point]] for killing an inchworm far from a flower, two points for an inchworm one step away from a flower, and three points for an inchworm closest to a flower. To kill the spiders, however, the player needs to spray them closest to a flower. If sprayed farther away, the spiders back away one step, giving the player a point. When the player kills a spider, they earn three points. As the game progresses, the inchworms and spiders will move faster. If an inchworm or spider reaches a flower, the flower will die, earning the player a miss. If the player gets 300 points without any misses, all points will be worth double until the player does get a miss. If the player has any misses at said score, all misses will be canceled instead. When the player gets three misses, they receive a [[Game Over]].
