Halloween is coming and the goose is getting fat, will you please put a penny in the old man's hat? If you haven't got a penny -- no problem! You can download the Mortal Kombat X Mobile app and play for free! If you did that over the Halloween weekend - you'll have come face-to-face mask with the inescapable terror of guest characters!!

Jason Voorhees made a splash with his inclusion in Mortal Kombat X as downloadable Kombat Pack guest fighter! The Friday the 13th franchise mascot must've got his calendar mixed up, because he's on the move as the Halloween Multi-Player Challenge for MKX Mobile!

[Related Article: Kountdown: Top 10 Mortal Kombat Horror Icons]

Mortal Kombat X Mobile is available to download now from Apple Store, Google Play & Amazon Games!

Did you brave the Camp Crystal Lake killer this Halloween? Got MK Halloween costume pics to share? Register to share your exploits on the Mortal Kombat X forum, and submit your kosplay! Support the community by liking & sharing via @MK_Online, Facebook & YouTube!