of Space 2 takes the classic gameplay of Space Invaders and adds a number
of modern innovations. One improvement is the ability to fire missiles at
enemies. As you shoot down invaders, aliens sometimes drop missiles you
can collect. An enemy might also release one of three weapon boosts. The
Freeze boost, for example, stops an invader in its tracks and shuts down
COS2 also allows you to upgrade your ship
between levels using points earned during combat. These can be spent on
increased firepower or other bonuses. Since you can reclaim points spent
on one improvement and apply them elsewhere, you can try out various
strategies for beating different parts of the game.
Though COS2 has its roots in traditional
arcade action, the developers made full use of current computer hardware
to create a stimulating audio-visual experience. By mixing innovation with
timeless gameplay, COS2 proves everything old is new again.