Aren't those bats a smidge longer than regular bats?
A handful of S11 games used that style bats. Radical used yellow ones, as did EATPM and Transporter. Dr Dude used white ones. I think I saw blue ones once, and as already mentioned by the Caveman, Bugs used orange ones.
Orange is a good look on this game. I have a set of orange bats in my parts box, but they are the standard W logo ones. Might have to give them a try in mine when I get to it.
I will find some original W bats and measure them. I just like the look and it has that 'Flintstones' feel to it....If they are a smidge longer we'll just keep it between ourselves!..
Below are some pics of the backbox. When Marco first saw the game he commented about the speaker panels. I have no idea but it seems that there are plain black ones going around and the coloured ones. Johnwartjr is making some enquires to find out the story...
Also the final pic is from under the playfield...It seems that perhaps someone on the production line had a sense of humor, or its a secret WMS code!