Last Box Standing May Go On

A puzzle game about cannibalistic box creatures. Try yourself on a handful of levels in a grid-based puzzle game; no large commitments required. Once you push them, these box creatures won't stop moving until they hit either a wall or another box. Be careful where you send them, or you won't get them back out! Once only one box remains, the goal door will open. You made sure you could reach it from where you stand, right?