through sub_812EB2C

include/constants/species.h

@@ -445,6 +445,9 @@
 #define SPECIES_UNOWN_EMARK 438
 #define SPECIES_UNOWN_QMARK 439
 
+#define SPECIES_OLD_UNOWN_EMARK 412
+#define SPECIES_OLD_UNOWN_QMARK 413
+
 #define NUM_SPECIES SPECIES_EGG
 
 #endif  // GUARD_CONSTANTS_SPECIES_H

include/wild_encounter.h

@@ -43,5 +43,6 @@ u16 GetLocalWildMon(bool8 *isWaterMon);
 u16 GetLocalWaterMon(void);
 bool8 UpdateRepelCounter(void);
 void sub_8082740(u8);
+u8 GetUnownLetterByPersonality(u32 personality);
 
 #endif // GUARD_WILD_ENCOUNTER_H