PQube's Birthday Suit edition included the following items:
- Gal*Gun Returns Exclusive Art Book / The Sexy Chronicles of Gal*Gun
- Official soundtrack set (3 CDs)
- 6 metal pins and a 10th anniversary medal
- 6 art cards of the game's CGs
- Pair of "safety goggles"
- Special reversible cover for Gal*Gun Returns Switch physical version
