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!