I have several versions of the same Gamate games. In total I have 52 unique games, but more than 150 cartridges (mostly due to the fact that I often had to buy bundles to get a missing game) some are in Italian, Spanish, German, UK and Asian packaging.
Some like Mars Voyager Italian vs Asian release have entirely different artwork.
I have dumped every single game cartridge I own, and it appears that each unique game share the same SHA-1 sum, hence I am quite sure there never was any regional differences.
So I think its pretty safe to assume that the Gamate games are identical regardless of territorial region.
