I just realized that you aren't attacking the tree, you are trying to help it grow. The ninja spreads fertilizer, the robot aids photosynthesis, the priest blesses the soil, and the wizard is casting nature magic.
this could be good if you did a few things first of all lower the shots. Im not an expert but im pretty sure superman doesnt shoot lasers from a foot above his head also you might consider programming a basic ai so you can play one player
one idea is to have the character not know who or what it is and have it slowly figure it out for example you start out as the black block because you dont even know what you look like then you see a mirror and the char changes to what it really looks like
cool game all things considered but you might want to add the kong api its pretty simple and stencyl even has a help button under the game tab when building a behavior
to stop the drifting i think you should put in the movement behavior that if arrow key is released set velocity to 0 idk but thats how i do it using stencyl
I'll do it when I get the chance.