Deception III: Dark Delusion expanded on the gameplay of Kagero by introducing a training mode, a mission mode, and trap enhancement through a series of crests and other artifacts. In the main story mode, players control Reina, a girl who, with her adoptive family, has been kidnapped and brought to the land of Burgenhagen to be sold into slavery. Reina must use the trapping powers she acquired to defeat her kidnappers and solve the mysteries of the pendant she wears, which other people seem to covet for unknown reasons. also returned as the sole means of regaining lost hit points. While not having secret traps, special emblems and rings can be acquired by achieving the game's four endings. Game saves are one block in size.