Defend your planet against the alien invaders in this new version of the classic arcade game. Either shoot black or white bullets to take down each invader. After each wave you will then need to take out the UFO ship flying at you. Be careful because the UFO can change colors. Try to complete each mission given to you in order to unlock all of the achievements.
How to play: Touch left and right or use arrow keys to shoot black or white bullets.
UFO Defense is an online action game that we hand picked for Lagged.com. This is one of our favorite mobile action games that we have to play. Simply click the big play button to start having fun. To play even more free games, view our all time top games page.