As part of the PlayStation Store Golden Week Sale (ending on May 2), Persona 4: Dancing All Night, Catherine and Shin Megami Tensei: Digital Devil Saga are currently discounted.
Additionally, Etrian Odyssey IV: Legends of the Titan and Etrian Mystery Dungeon for the Nintendo 3DS are currently discounted on the Nintendo eShop until May 7.
Persona 4: Dancing All Night
Persona 4: Dancing All Night is 30% off, from $49.99 to $34.99 US.
Catherine
Catherine is 66% off, from $19.99 to $6.79 US.
Shin Megami Tensei: Digital Devil Saga
Shin Megami Tensei: Digital Devil Saga is 40% off, from $9.99 to $5.99 US.
Etrian Odyssey IV: Legends of the Titan
Etrian Odyssey IV: Legends of the Titan is 33% off, from $29.99 to $9.99 US.
Etrian Mystery Dungeon
Etrian Mystery Dungeon is 50% off, from $39.99 to $19.99.