Today is the final day to snagR-Type Delta and R-Types from the US PSN store, where they are PS One Classics. All R-Type games are being removed from PSN, following a slew of similar delistings on the Japanese PlayStation Sore in August 2011 and R-Type's removal from the Wii Virtual Console in September 2011.
Developer Irem hasn't provided any reason for the delistings.
Blast off and strike the evil Bydo Empire! Pilot your futuristic fighter, the R-9a “Arrowhead,” and attack wave after wave of Bydo baddies in old-school side-shooter style. It’s the relentlessly challenging R-Type just the way you remember it!