You are the leader of a team of ninjas, assassinating several targets. You've earned the name "Mississippi-10" since you like to kill your targets before they can say
One Mississippi
Two Mississippi
Three Mississippi
Four Mississippi
Five Mississippi
Six Mississippi
Seven Mississippi
Eight Mississippi
Nine Mississippi
Ten Mississippi

Also, there's a lot of controls. Sorry. These are all presented in game, one at a time, and it shouldn't be necessary to look here, but if you forget:

WASD or Arrow Keys - Move
K - Throw a laser-shuriken
Space Bar - Pause
E - Slow the game (Good for precise throws, movements)
T - Speed the game up (Good for lazy people)
R - Rewind the game.
Dragging the timeline - Changes current time.