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[karm]

...but I don't remember the name, because it's more than 10 years since I've played it last. It was some kind of robot, looks like turret on two metal legs. It could shoot beams or something like that but could upgrade it to shoot different types (the last but one was rainbow spiral and the last one was oragne arc, if I remember correctly). Also third level was some kind of game protection or just a puzzle, because you had to fint a correct letters. That's all I can remember but I want to play that game a lot. I can't provide more information so I hope someone will recognize it.
Thanks