Thanks for the added info Andreas.
Coding the glitch would be quite easy to implement but I would still need to see it myself in order to take the correct timing (I count the frames and the pixels literally one by one). At the end I think very few players would know about it anyway :-)
So it seems that I am one year older than you, I also played DK in the arcades it was one of my favourites and it still is.
How did you end up here, are you also coming from the DK forum community?