Milky Way Madness is a classic coin-op style game with Galaga or Galaxian similarities.
Use your arrow keys to move and the Z button to shoot. The gameplay should feel familiar to Galaga fans and increases in difficulty as you progress. You can also expect to find four unique main bosses to fight.
Overall, another well-done game with the look and feel of the classics but with original artwork and sounds. This portable game should keep you entertained for a couple of hours.