[PyGame] Pygame is treating blob_group as a surface, when I need it to treat it as a Sprite.

[metulburr]

Line 18 you assign it to a loaded pygame image, which is a surface. Then you define your World class, and then call the world class. But right after that one line 187 you redefine it to a group. You should have this defined before World class definition.

You shouldn't use the same variable and change it mid program to some other object.