This paper model is Scorpion's Sword, based on the fighting game series Mortal Kombat, created by J. Ossorio. Scorpion is a recurring player and occasional boss character. In the games, he is an undead ninja spectre looking for revenge for his own death, his family and clan, Shirai Ryu, killed at the hands of their rival clan Lin Kuei and Sub-Zero.
Scorpion is one of most well-known and popular Mortal Kombat characters and has been playable in all the games, with the exception of the original version of Mortal Kombat 3. As such he was added to the logo of NetherRealm Studios, the successor of Midway Games and is featured on the cover art for Mortal Kombat 2011, alongside Sub-Zero.
You can download the papercraft model here: Mortal Kombat - Scorpion's Sword Free Paper Model Download