Short but fast paced space invaders clone game. Limited replayability with different enemy layouts even at same level. Some of the bosses also change appearance. Your ship shoots a max of 3 or 4 bullets after a few levels (i got 4 bullets in my first few playthroughs but only got three on my final run). Be careful as there are few life powerups. Weapon powerups are very short lived and rather mundane like increased bullet speed, death ray, 2 bouncing projectiles and "air support". Get it on sale if you like the genre