Richter and Maria brace themselves to save Christmas!
This is a version of Portrait of Ruin's Richter Mode where dressed in Christmas attire and having a new set of Christmas/ice-themed abilities, Richter and Maria explore a reworked layout of Dracula's Castle and each painting that's more linear for the sake of eliminating pointless wandering.
You can find HP and MP upgrades for exploring beyond the beaten path as well as enjoy jolly music from other DS games.
Database match: Castlevania - Portrait of Ruin (USA)
Database: No-Intro: DS (all) (v. 20210227-111036)
File/ROM SHA-1: 382602E3615B2282EEAD584014125E71B5B0F033
File/ROM CRC32: 96DF4C4D