This anime style, 2d sidescrolling, platformer, was made in Korea. It is a DOS game made back in 1996. Looks something like Sonic the Hedgehog given this little guy's running speed and "spinning legs" effect. He's supposed to be a little elf or troll or something.
Read about it and download it from this web page.
One of the most ammusing (and weird) characteristics of the hero in this game is that if you double tap the down arrow he'll urinate on the ground which will then cause a mushroom to grow there, that he can then jump on to get a high jump boost (sort or like the spring platforms in Sonic games).