I created this concept for the indie game Deliver Us for Scuttlebutt Games. The character was created early in the game's development as a grab bag of enemy types. Each required a unique function and a strong read from one another. I knew not all of them would be used, but I feel they compliment one another nicely.
Ralf was designed early on to be our "turret" enemy. There was a bit of overlap with him and Chuk, so we never got him into the software.