Pros: There are several levels for players to select, either you are a newbie or experienced one, could find the most appropriate level. Cons: It responses a little sluggish after finishing every level. Story: Orion invaders have arrived at our beautiful planet. Now you are assigned to attack them and follow them to their layers in Dimension - X. In order to better achieve the task, earth leaders left you a hi - tech spacecraft with high equipment "X - Avenge". Your fighting could be easily with this arms.   You could get bonuses to power up X - Avenger with tons of missiles and energy -...