diff --git a/src/field_screen_effect.c b/src/field_screen_effect.c
index 9becd21666..dc911f9f70 100644
--- a/src/field_screen_effect.c
+++ b/src/field_screen_effect.c
@@ -914,7 +914,7 @@ static void UpdateOrbFlashEffect(u8 taskId)
     }
 }
 
-static void sub_80AFF90(u8 taskId)
+static void Task_WaitForFlashUpdate(u8 taskId)
 {
     if (!FuncIsActiveTask(UpdateFlashLevelEffect))
     {
@@ -923,13 +923,13 @@ static void sub_80AFF90(u8 taskId)
     }
 }
 
-static void sub_80AFFB8(void)
+static void StartWaitForFlashUpdate(void)
 {
-    if (!FuncIsActiveTask(sub_80AFF90))
-        CreateTask(sub_80AFF90, 80);
+    if (!FuncIsActiveTask(Task_WaitForFlashUpdate))
+        CreateTask(Task_WaitForFlashUpdate, 80);
 }
 
-static u8 sub_80AFFDC(s32 centerX, s32 centerY, s32 initialFlashRadius, s32 destFlashRadius, s32 clearScanlineEffect, u8 delta)
+static u8 StartUpdateFlashLevelEffect(s32 centerX, s32 centerY, s32 initialFlashRadius, s32 destFlashRadius, s32 clearScanlineEffect, u8 delta)
 {
     u8 taskId = CreateTask(UpdateFlashLevelEffect, 80);
     s16 *data = gTasks[taskId].data;
@@ -948,7 +948,7 @@ static u8 sub_80AFFDC(s32 centerX, s32 centerY, s32 initialFlashRadius, s32 dest
     return taskId;
 }
 
-static u8 sub_80B003C(s32 centerX, s32 centerY, s32 initialFlashRadius, s32 destFlashRadius, s32 clearScanlineEffect, u8 delta)
+static u8 StartUpdateOrbFlashEffect(s32 centerX, s32 centerY, s32 initialFlashRadius, s32 destFlashRadius, s32 clearScanlineEffect, u8 delta)
 {
     u8 taskId = CreateTask(UpdateOrbFlashEffect, 80);
     s16 *data = gTasks[taskId].data;
@@ -972,14 +972,15 @@ static u8 sub_80B003C(s32 centerX, s32 centerY, s32 initialFlashRadius, s32 dest
 #undef tFlashRadiusDelta
 #undef tClearScanlineEffect
 
+// A higher flashLevel value is a smaller flash radius (more darkness). 0 is full brightness
 void AnimateFlash(u8 flashLevel)
 {
     u8 curFlashLevel = Overworld_GetFlashLevel();
-    u8 value = 0;
+    bool8 fullBrightness = FALSE;
     if (!flashLevel)
-        value = 1;
-    sub_80AFFDC(DISPLAY_WIDTH / 2, DISPLAY_HEIGHT / 2, sFlashLevelPixelRadii[curFlashLevel], sFlashLevelPixelRadii[flashLevel], value, 1);
-    sub_80AFFB8();
+        fullBrightness = TRUE;
+    StartUpdateFlashLevelEffect(DISPLAY_WIDTH / 2, DISPLAY_HEIGHT / 2, sFlashLevelPixelRadii[curFlashLevel], sFlashLevelPixelRadii[flashLevel], fullBrightness, 1);
+    StartWaitForFlashUpdate();
     ScriptContext2_Enable();
 }
 
@@ -1148,7 +1149,7 @@ static void Task_OrbEffect(u8 taskId)
     case 1:
         sub_8199DF0(0, PIXEL_FILL(1), 0, 1);
         LoadOrbEffectPalette(tBlueOrb);
-        sub_80B003C(tCenterX, tCenterY, 1, 160, 1, 2);
+        StartUpdateOrbFlashEffect(tCenterX, tCenterY, 1, 160, 1, 2);
         tState = 2;
         break;
     case 2: