you have to scroll your cursor over the screen to find things to click on, that help you move to the next scene
im addicted to this game, it isnt strange just fun as hell http://www.handdrawngames.com/DesktopTD/Game.asp
i worked that out. but why do you have to make smoke a bong and then use the hookah for a key and why are those crazy little bastards in the background?