Castlevania: Circle of the Moon, a 2001 GBA metroidvania by Konami, follows Nathan Graves battling Dracula’s forces with the DSS card system. Selling ~1 million copies, it’s a 2025 X retro classic (,).

The .gba ROM (~8 MB) features dark 16-bit visuals and a haunting soundtrack, running smoothly on emulators like VisualBoyAdvance, mGBA, or RetroArch on PC, Mac, or Android. Legally download Castlevania: Circle of the Moon GBA ROM by dumping your cartridge with GBxCart RW (~$50,). Avoid illegal ROM sites like EmulatorGames.net due to malware and Konami’s copyright rules (). Buy Castlevania cartridges (~$20–$60 in 2025 on eBay) for legal dumping or play on Analogue Pocket. Defeat evil legally at Gigarom!