Raiden IV (Limited Edition)

The fact that Raiden IV never received a standard retail disc release makes this Limited Edition on Xbox 360 the only physical version that exists. Let that register for a moment. The Limited Edition of Raiden IV comes in a two-disc plastic case, bundling the game with a soundtrack CD featuring original music and remixes from INH composers Go Sato and Akira Sato.

As a GameStop exclusive in the US, distribution was already tight, and with the regular edition available only as a digital download, this disc is the sole tangible proof that Raiden IV graced the 360. For shmup collectors, that's a big deal. Raiden IV is a blistering vertical shooter that carries forward the legacy of one of the arcade genre's most respected names, and the included soundtrack is a proper companion piece, not some throwaway bonus disc.

The scarcity math is simple here: limited retail exclusivity, no alternative physical release, and a passionate niche community that knows exactly what this is worth. If you collect shooters on the 360, this isn't optional. It's essential.