Robotz DX
Combine old school graphics and some basic shooter gameplay and you get a retro looking shooter game in the form of Robotz DX. True to most retro shooter games, this one is incredibly difficult to master. All 30 levels will give you a good run for your money as you go through each stage.
Initially based on an Atari game, Robotz; this game is new and improved yet retains the old school touch quite awesomely. Remade by Josh Monkman, the game beautifully captures the feel and gameplay of the original. Retaining some of the essential elements while adding a more updated look to capture the hearts of modern gamers. It's no joke that the game is difficult to beat so gather up patience and a lot of free time before diving in.