Hummer - Hummer - A small, odd creature that appears to be a bat with a humming bird's head. It flies through the air making a loud buzzing sound and attacks by hovering over Henry's head before jabbing him with a sharp, needle-like beak. Hummers heavily rely on attacking in packs and will inflict great damage if left together. Later on during the second half of the game, Walter will attack these creatures for reasons unknown.