 Originally, Ralf and Clarks only differences were to be Ralfs  bandanna and Clarks hat. They were also shirtless much like their  original appearance in _Ikari Warriors (1986) (VG)_ (qv). However  the designers wanted to give them a more original design, so Clark  was given sunglasses and Ralf arrived at his current design. Ralfs  original intended ability to throw grenades was also removed due to  possible "unfairness" in the game.