Unsettling CBBC shutdown bumper (2010s) (lost)

I saw this around 2010 or 2011. It featured these red robot thingies zapping each letter, and when the CBBC logo appeared they zapped that too. The "C-B-B-C!" voice also sounded strange, but it had the usual "the action continues" graphics.

I distinctly remember it scaring the crap out of me. The only part of the bumper confirmed to exist is the part where the red robots zap the second C.

I can’t find it tho. Must be somewhere around the Intarwebz.