Mushroom Tower Defense

I would almost say that this is a tower defense game for kids, but the stupid thing is that Ive played it myself and had fun with it, though I would not count myself as a child anymore. At first I didnt know what the towers were, but it were mushrooms which are available starting at 100 in the menu. The upgrade is based on different elements you can add to the individual towers, depending on the upgrade level of the tower they can be linked together with various elements. You also get some powerups in between.