Complex sentence: However unlike the other platform versions, these versions for are quite different they are released in the US under those titles and are called "Dogz 2" and "Catz 2" in the UK.
Split into simpler sentences: However unlike the other platform versions, these versions for are quite different. They are released in the US under those titles and are called "Dogz 2" and "Catz 2" in the UK.