I got the Golden Tee. The PCB looks similar to the others- 2 blobs, one with TSOP 48 pads. The crystal is different, 21.47727 MHz vs 21.28137, but I guess that's NTSC vs PAL. Too cold to deglob it today, but it's supposed to warm up over the next few days.
I was wondering that. The game code supports both PAL and NTSC (it reads a bit from a port and displays the Radica UK logo in one case, the generic Radia logo in another) but it would make sense if the crystal differed. They probably used the same code for all regions, just with different crystals.
btw, there's an online portfolio for somebody who developed 3 games for Radica
