Great fun. Having to pick up my arm from right by the enemies was the perfect punishment for sloppy shooting, and made me be more careful and precise. I'd love for more of the interactions to have audio, and a soundtrack could do a lot of mood-setting and fill out the narrative: Who am I? Where am I? Things can be implied in the music. I loved that sometimes, the levels were a lot easier if you just left something behind and RAN.
Great work for a solo entry! Doing everything is quite exhausting, isn't it?