While this isn't terrible, it would be nice to have the choice of using the 2nd and alpha buttons. Flipping the screen would be another useful option. Another great improvement would be upgradeable weapons. The game's positive features far outweigh the negative ones. The game itself is very fun and involving.
Graphics run smoothly, and ship control is responsive.
There is also a wide variety of enemies that come in different formations. The game is also supported by very good documentation. Each of these enemies is described in detail, and a background story is also provided. Galaxian is a fun game that is also relatively small. You should have this on your calculator.