Heartbeat - project by GameJam.ru was made for 1 week.
[arrows] - move, [Z] - scream (radar), [X] - spawn a portal, [SPACE] - bite (hold to grab)fullscreen [F] and sound on are VERY recommended!
Hint:: Don't kill civilians fast. Scare them first to get all their fear.
Collect enough fear to spawn a portal. Then feed it with alive people.