VT03 games can be placed in a VT02 menu system (such as on the dreamGEAR 75-in-1), so I don't really know what you mean by that...it's theoretically possible for them to be VT02 back-ports, but them being the VT03 versions is more likely.
the code from the pcb:

also links a hint to VT03, however the undumped section of the Bootleggames Wiki is still wrong about "non-Waixing versions of VT03 games". Surely, there is Germ killer, but judging from the rest rather being 8-bit sounds, it is too unlikely for the pcm version.
Also: undumped section of the Bootleggames Wiki is
definitely wrong about the info for the Rosen Car player having PCM WXN+YMK games, because those suspected titles (Germ Killer, Magiccal Kitchen, Maze Puzzle, POP Monster, Under Water Rescuse, X Ball, Access Block) were not even in the console.
and one more thing: the
older Wireless Baseball console by Dreamgear does NOT have the Game Maze Ball in it at all. it has X-Ball instead.