How does the game?
The game is a very simple arcade game . It provides the user with its missile shots spaceship to destroy the aliens who come to Earth to destroy the planet .
The object of the game is to destroy all the aliens who come each time more quickly , and then get to the final boss .
Beating the final boss you access the next level of the game .
This being a demo version , only the first level .
The game stores a ranking , with their scores , and being an arcade game , the player who makes the highest score possible.