For those who are unaware of the game, please note that this is a classic side scrolling shooter action game. In fact it is so addictive, I bet you would play even while commuting or just lazying around the couch. A bunch of weapons goodies like the laser gun, SL gun, SH gun, power shield make for an interesting experience. Also with each new level, the difficulty gets increasing proportionally. Honestly, there's nothing pathbreaking in this game, but play it just for the good old shooting fun. Aah the vintage classics!
Check out a few screenshots here :) This will definitely make you download it.