diff --git a/include/data_script.h b/include/data_script.h
index bc6285330..c39e495c8 100644
--- a/include/data_script.h
+++ b/include/data_script.h
@@ -103,7 +103,8 @@
 #define SCENARIO_ADVANCE(v,a)           { 0xAA, 0, v, a, 0, NULL }
 #define SET_DUNGEON_RES(r,e)            { 0xAB, 0, r, e, 0, NULL }
 #define SET_PLAYER_KIND(k)              { 0xAC, 0, k, 0, 0, NULL }
-// ad..b2: opaque functions
+#define UNLOCK_FRIEND_AREA(a)           { 0xAD, TRUE, a, 0, 0, NULL }
+// ae..b2: opaque functions
 #define JUMPIF_EQUAL(v,i,l)             { 0xB3, l, v, i, 0, NULL }
 #define JUMPIF(o,v,i,l)                 { 0xB4, o, l, v, i, NULL }
 #define JUMPIF_2(o,a,b,l)               { 0xB5, o, l, a, b, NULL }
diff --git a/include/event_flag.h b/include/event_flag.h
index 624835a95..c1b84ee7e 100644
--- a/include/event_flag.h
+++ b/include/event_flag.h
@@ -39,7 +39,7 @@ bool8 CheckQuest(s32 questID);
 u8 MapIdToFriendAreaId(s16 mapId_); // map -> friend area lookup
 s16 FriendAreaIdToMapId(u8 friendAreaId); // friend area -> map lookup
 bool8 sub_80026CC(s16 r0);
-void sub_80026E8(s16 r0, bool8 r1);
+void ScriptUnlockFriendArea(s16 r0, bool8 r1);
 bool8 SaveGlobalScriptVars(void *dest);
 bool8 RestoreGlobalScriptVars(u8 *src);
 
diff --git a/src/data/ground/ground_event_data.h b/src/data/ground/ground_event_data.h
index c7c453999..a07dcb575 100644
--- a/src/data/ground/ground_event_data.h
+++ b/src/data/ground/ground_event_data.h
@@ -3054,7 +3054,7 @@ static const struct ScriptCommand s_script_EVENT_S01E02A_START[] = { /* 0x812816
     SCENARIO_CALC(SCENARIO_SUB1, 31,  1),
     { 0xae, 0x01,  0x000f,  0x00000000,  0x00000000, NULL },
     { 0xb0, 0x01,  0x000e,  0x00000000,  0x00000000, NULL },
-    { 0xad, 0x01,  0x0076,  0x00000000,  0x00000000, NULL },
+    UNLOCK_FRIEND_AREA(MAP_FRIEND_AREA_SKY_BLUE_PLAINS),
     UPDATE_VARINT(CALC_SET, BASE_LEVEL, 2),
     RET_DIRECT,
 };
diff --git a/src/event_flag.c b/src/event_flag.c
index 6e2486f64..415d958f3 100644
--- a/src/event_flag.c
+++ b/src/event_flag.c
@@ -922,7 +922,7 @@ bool8 sub_80026CC(s16 r0)
 }
 
 // arm9.bin::0200E568
-void sub_80026E8(s16 r0, bool8 r1)
+void ScriptUnlockFriendArea(s16 r0, bool8 r1)
 {
     UnlockFriendArea(MapIdToFriendAreaId(r0));
 }
diff --git a/src/ground_main.c b/src/ground_main.c
index d3e6e2fdd..4a5c87922 100644
--- a/src/ground_main.c
+++ b/src/ground_main.c
@@ -113,7 +113,7 @@ u32 xxx_script_related_8098468(s32 param_1)
             s32 local_1c;
             u32 auStack24;
 
-            GetScriptVarScenario(3,&local_1c,&auStack24);
+            GetScriptVarScenario(SCENARIO_MAIN,&local_1c,&auStack24);
             gUnknown_20398B8 = local_1c == 0;
             gUnknown_20398B9 = 1;
             break;
diff --git a/src/ground_script.c b/src/ground_script.c
index e850fbe6f..32a32ab7c 100644
--- a/src/ground_script.c
+++ b/src/ground_script.c
@@ -2552,31 +2552,31 @@ static s32 ExecuteScriptCommand(Action *action)
                 UpdateScriptVarWithVar(scriptData->localVars.buf, curCmd.argShort, (s16)curCmd.arg1, curCmd.argByte);
                 break;
             }
-            case 0xa8: {
+            case 0xA8: { // SET_ARRAYVAL
                 SetScriptVarArrayValue(scriptData->localVars.buf, curCmd.argShort, (u16)curCmd.arg1, curCmd.arg2);
                 break;
             }
-            case 0xa9: {
+            case 0xA9: { // SCENARIO_CALC
                 ScenarioCalc(curCmd.argShort, curCmd.arg1, curCmd.arg2);
                 break;
             }
-            case 0xaa: {
+            case 0xAA: { // SCENARIO_ADVANCE
                 s32 a, b;
                 GetScriptVarScenario(curCmd.argShort, &a, &b);
-                ScenarioCalc(curCmd.argShort, a, b+1);
+                ScenarioCalc(curCmd.argShort, a, b + 1);
                 break;
             }
-            case 0xab: {
+            case 0xAB: { // SET_DUNGEON_RES
                 SetScriptVarValue(NULL, DUNGEON_ENTER, curCmd.arg1);
                 SetScriptVarValue(NULL, DUNGEON_RESULT, curCmd.argShort);
                 break;
             }
-            case 0xac: {
+            case 0xAC: { // SET_PLAYER_KIND
                 SetScriptVarValue(NULL, PLAYER_KIND, curCmd.argShort);
                 break;
             }
-            case 0xad: {
-                sub_80026E8(curCmd.argShort, (u8)curCmd.argByte > 0);
+            case 0xAD: { // UNLOCK_FRIEND_AREA
+                ScriptUnlockFriendArea(curCmd.argShort, (u8)curCmd.argByte > 0);
                 break;
             }
             case 0xae: {
@@ -2641,13 +2641,13 @@ static s32 ExecuteScriptCommand(Action *action)
                 }
                 break;
             }
-            case 0xba: { // JUMPIF_SCENE_GT
+            case 0xBA: { // JUMPIF_SCENE_GT
                 if (ScriptVarScenarioAfter(curCmd.argShort, curCmd.arg1, curCmd.arg2)) {
                     scriptData->script.ptr = FindLabel(action, (u8)curCmd.argByte);
                 }
                 break;
             }
-            case 0xbb: { // JUMPIF_SCENARIOCHECK
+            case 0xBB: { // JUMPIF_SCENARIOCHECK
                 if (CheckQuest(curCmd.argShort)) {
                     scriptData->script.ptr = FindLabel(action, (u8)curCmd.argByte);
                 }
@@ -3267,7 +3267,7 @@ static s32 sub_80A14E8(Action *action, u8 idx, u32 r2, s32 r3)
             }
             break;
         case 0x20:
-            sub_80026E8(0x9E, 0x1);
+            ScriptUnlockFriendArea(MAP_FRIEND_AREA_LEGENDARY_ISLAND, TRUE);
             if (GetRecruitedMonBySpecies(MONSTER_ZAPDOS, 0) == NULL) {
                 static const DungeonLocation zapdosLoc = {.id = DUNGEON_MT_THUNDER_PEAK, .floor = 99};
                 if (TryAddLevel1PokemonToRecruited(MONSTER_ZAPDOS, NULL, ITEM_NOTHING, &zapdosLoc, NULL))