Byteria Heroes: Far Wars 5.4

Funny platform game with about 50 levels, in which rookie superhero Marty must defend his homeland against wannabe world conqueror Scrapper and his extradimensional allies. You can play using the keyboard or a joystick, and the automatic save feature allows you to start the game at any world already reached before. The story is told in entertaining cutscenes, but you can also disable them if you wish.