Attack of the 50ft Robot! is one of the few games where you can immediately know the game's premise just by reading the title. You take the role of (you guessed it) a 50ft robot as you crush, throw, and zap anything you see.
The game has a very unique 1950's feel that is similar to that of the Fallout series and the film Iron Giant. The minute the menu pulls up, you know the authors put a lot of effort into the game's atmosphere. Everything from Sepia effects to film grain has been thrown onto the engine. Add an absolutely stellar soundtrack to the mix and the entire experience feels like an interactive movie.
The robot is equipped with a few useful skills such as ground stomps, projectile fists, lasers, and jet boots, making your method of destroying stuff pretty varied. Of course, you'll typically find one move that suits you and just spam it constantly.
The graphics are pretty dang spiffy for a freeware game. There are lots of shaders, particle effects, and all around good models. Just about everything is destructible and utilizes a good physics engine to complete the effect. There is no GUI; instead, you monitor your health using the red life-bar built into the back of the robot (pretty nifty!).
Attack of the 50ft Robot! is not without its flaws, though. For instance, if you click to pick up an object and nothing is nearby, the robot grabs his head and throws it instead. This seems comical at first, but it is very weak, so you'll often get frustrated when you are near an object and he still grabs his head. The story's length is also one of the few downfalls; You can probably finish this game in about 10 minutes.
Overall, Attack of the 50ft Robot! is a very polished game. With superb ambiance, a great soundtrack, and fun gameplay, you owe it to yourself to give it a shot.