Super Ninja

The best way to defend yourself is to attack! All over the world, evil monsters are plotting to attack humans! You, a super ninja, have been given the mission: defeat these hordes of monsters and return home safely! Use the portals developed by genius scientists to infiltrate the monsters' bases! However, the portal will close after a certain amount of time. You must defeat the boss monster and return in time! You are the only hero who can save the world!