I am fully agreeing with the comments by others. You definitely need a multi-select feature because I was going crazy doing all the dragging and dropping. It gets super annoying if you don't grab the human.
It is a cool game idea. Could have been an entry to Ludum Dare 43 ;) Sound and graphics are as always top notch.
However, the game was not really feeling challenging to me. It was just annoying and felt like a task like dragging all files from one folder to another, but separately.