I know this post is kind of old but I figured I would share some knowledge that most developers don’t know about. Transparent png images can be compressed and you can save up to 80% without any quality distortion at all. There are lots of tools that will do it but the easiest one I use for one off images is https://tinypng.com/
That massive png you have with all the sprites is probably well over a mb or two I would imagine. Using that tool will probably cut it down to 500k if not less.
Just curious, how did you go about spawning and destroying the sections of the hill?
I know this post is kind of old but I figured I would share some knowledge that most developers don’t know about. Transparent png images can be compressed and you can save up to 80% without any quality distortion at all. There are lots of tools that will do it but the easiest one I use for one off images is https://tinypng.com/
That massive png you have with all the sprites is probably well over a mb or two I would imagine. Using that tool will probably cut it down to 500k if not less.