Tentacle Monster is the original tentacle moster animation by Switch. It's one and only location is on Newgrounds.com
In the plot, a stick figure is seen playing on his computer, when all of a sudden, a small blue grey monster with tentacles grabs the stick figures face. But the stick counter reacts and kills the monster with a knife, and then several others. Then the stick figure walks up to a glass wall that reads: "In case of Tentacle Monsters, break glass". the stick does so, and pulls out a flamethrower, which he uses to kill many monsters until a large monster appears. The stick figure uses the knife to cut open the giant monster's face, and several other monsters come out of it. The stick figure quickly eyes the creatures and then his knife before deciding to run away, dropping the knife.