If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Fight hordes of ninjas using a variety of weapons ranging from projectiles (guns and needles) to different blade types (swords and katanas). Earn ki points to upgrade your character Marseilles!
WASD to move.
S to use your katana.Left click mouse to throw a kunai.
More details in the game.