when selecting seeds, click on the seed on a grid to select it, and click the seed when it's on the top row to deselect it. numbered keys 1-9 when in wave and then click to plant. (you must have the required amount of sun, the only plant that does not require sun is the puff-shroom) zombies now spawn on their own, so you cannot spawn them manually.
Idk why this is the most popular version of the game so far; latest version found here: https://scratch.mit.edu/projects/705104607 all code, artwork and custom plants by @bowmand117 ideas for most plants and the zombies by papcom my inspiration to make this was by @cs361846 no new plants or zombies other than the cherry bomb has been added.