Level Devil is a neat little browser game to enjoy for about 40-60 minutes. What's great about it is not the graphics or even the level design because both are rudimentary. A black little guy, mostly the same coloury backgrounds and everything is blocky and pixely. In fact, Level Devil reminds me a lot of "This is the Only Level". The logic of the game changes constantly making you rethink as quickly as possible. Sometimes you jump high, sometimes you are slow, sometimes you ARE the goal. Unfortunately, there are a lot of Kaizo Mario style mean tricks played on you like disappearing grounds or suddenly appearing spikes. Most of the time you simply cannot react fast enough forcing you to start again. Because of the bite-sized levels, the frustration doesn't get all too high (but it's there). But it is free, it is short and if you are a fan of this style of game then what are you waiting for?