diff --git a/include/effect.h b/include/effect.h
index 060b6cd090..97412e2f33 100644
--- a/include/effect.h
+++ b/include/effect.h
@@ -391,7 +391,7 @@ void EffectSsSibuki_SpawnBurst(struct PlayState* play, Vec3f* pos);
 void EffectSsSibuki2_Spawn(struct PlayState* play, Vec3f* pos, Vec3f* velocity, Vec3f* accel, s16 scale);
 void EffectSsGMagma2_Spawn(struct PlayState* play, Vec3f* pos, Color_RGBA8* primColor, Color_RGBA8* envColor,
                            s16 updateRate, s16 drawMode, s16 scale);
-void EffectSsStone1_Spawn(struct PlayState* play, Vec3f* pos, s32 arg2);
+void EffectSsStone1_Spawn(struct PlayState* play, Vec3f* pos, s32 freezeFadeFlash);
 void EffectSsHitMark_Spawn(struct PlayState* play, s32 type, s16 scale, Vec3f* pos);
 void EffectSsHitMark_SpawnFixedScale(struct PlayState* play, s32 type, Vec3f* pos);
 void EffectSsHitMark_SpawnCustomScale(struct PlayState* play, s32 type, s16 scale, Vec3f* pos);
diff --git a/src/code/z_effect_soft_sprite_old_init.c b/src/code/z_effect_soft_sprite_old_init.c
index fea0102140..c6ae48eb24 100644
--- a/src/code/z_effect_soft_sprite_old_init.c
+++ b/src/code/z_effect_soft_sprite_old_init.c
@@ -733,11 +733,11 @@ void EffectSsGMagma2_Spawn(PlayState* play, Vec3f* pos, Color_RGBA8* primColor,
 
 // EffectSsStone1 Spawn Functions
 
-void EffectSsStone1_Spawn(PlayState* play, Vec3f* pos, s32 arg2) {
+void EffectSsStone1_Spawn(PlayState* play, Vec3f* pos, s32 freezeFadeFlash) {
     EffectSsStone1InitParams initParams;
 
     initParams.pos = *pos;
-    initParams.unk_C = arg2;
+    initParams.freezeFadeFlash = freezeFadeFlash;
 
     EffectSs_Spawn(play, EFFECT_SS_STONE1, 128, &initParams);
 }
diff --git a/src/overlays/actors/ovl_En_Arrow/z_en_arrow.c b/src/overlays/actors/ovl_En_Arrow/z_en_arrow.c
index f883658f4a..7919754875 100644
--- a/src/overlays/actors/ovl_En_Arrow/z_en_arrow.c
+++ b/src/overlays/actors/ovl_En_Arrow/z_en_arrow.c
@@ -294,7 +294,7 @@ void EnArrow_Fly(EnArrow* this, PlayState* play) {
                 sfxId = NA_SE_IT_SLING_REFLECT;
             }
 
-            EffectSsStone1_Spawn(play, &this->actor.world.pos, 0);
+            EffectSsStone1_Spawn(play, &this->actor.world.pos, false);
             SfxSource_PlaySfxAtFixedWorldPos(play, &this->actor.world.pos, 20, sfxId);
             Actor_Kill(&this->actor);
         } else {
diff --git a/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.c b/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.c
index 8d5605e763..f9e9cb1aa7 100644
--- a/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.c
+++ b/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.c
@@ -1,7 +1,7 @@
 /*
  * File: z_eff_ss_stone1.c
  * Overlay: ovl_Effect_Ss_Stone1
- * Description:
+ * Description: Impact effect for deku nuts and seeds
  */
 
 #include "z_eff_ss_stone1.h"
@@ -18,7 +18,7 @@
 
 #include "assets/objects/gameplay_keep/unknown_eff_stone.h"
 
-#define rReg0 regs[0]
+#define rFreezeFadeFlash regs[0]
 
 u32 EffectSsStone1_Init(PlayState* play, u32 index, EffectSs* this, void* initParamsx);
 void EffectSsStone1_Draw(PlayState* play, u32 index, EffectSs* this);
@@ -35,6 +35,7 @@ typedef struct EffStoneDrawInfo {
     /* 0x08 */ Color_RGBA8 envColor;
 } EffStoneDrawInfo;
 
+// Indexed by the decreasing life (from 7 to 0), so in reverse order
 static EffStoneDrawInfo sDrawInfo[] = {
     { gUnknownEffStone8Tex, { 200, 0, 0, 255 }, { 0, 0, 0, 255 } },
     { gUnknownEffStone7Tex, { 255, 100, 0, 255 }, { 100, 0, 0, 255 } },
@@ -53,7 +54,7 @@ u32 EffectSsStone1_Init(PlayState* play, u32 index, EffectSs* this, void* initPa
     this->pos = pos;
     this->vec = pos;
     this->life = 8;
-    this->rReg0 = initParams->unk_C;
+    this->rFreezeFadeFlash = initParams->freezeFadeFlash;
     this->draw = EffectSsStone1_Draw;
     this->update = EffectSsStone1_Update;
 
@@ -63,17 +64,20 @@ u32 EffectSsStone1_Init(PlayState* play, u32 index, EffectSs* this, void* initPa
 void EffectSsStone1_Draw(PlayState* play, u32 index, EffectSs* this) {
     GraphicsContext* gfxCtx = play->state.gfxCtx;
     EffStoneDrawInfo* drawParams = &sDrawInfo[this->life];
-    Vec3f mfVec;
-    f32 mfW;
+    Vec3f unusedProjectedPos;
+    f32 viewDepth;
     f32 scale;
 
     OPEN_DISPS(gfxCtx, "../z_eff_ss_stone1.c", 154);
 
-    SkinMatrix_Vec3fMtxFMultXYZW(&play->viewProjectionMtxF, &this->pos, &mfVec, &mfW);
-    scale = (mfW < 1500.0f) ? 3.0f : (mfW / 1500.0f) * 3.0f;
+    // Grow the effect with distance (when above 1500 units) so as to keep a roughly constant on-screen size when far
+    SkinMatrix_Vec3fMtxFMultXYZW(&play->viewProjectionMtxF, &this->pos, &unusedProjectedPos, &viewDepth);
+    scale = (viewDepth < 1500.0f) ? 3.0f : (viewDepth / 1500.0f) * 3.0f;
+
     Matrix_Translate(this->pos.x, this->pos.y, this->pos.z, MTXMODE_NEW);
     Matrix_Scale(scale, scale, scale, MTXMODE_APPLY);
     MATRIX_FINALIZE_AND_LOAD(POLY_XLU_DISP++, gfxCtx, "../z_eff_ss_stone1.c", 168);
+
     Gfx_SetupDL_61Xlu(gfxCtx);
     gSPSegment(POLY_XLU_DISP++, 0x08, SEGMENTED_TO_VIRTUAL(drawParams->texture));
     gDPSetPrimColor(POLY_XLU_DISP++, 0, 0, drawParams->primColor.r, drawParams->primColor.g, drawParams->primColor.b,
@@ -85,7 +89,8 @@ void EffectSsStone1_Draw(PlayState* play, u32 index, EffectSs* this) {
 }
 
 void EffectSsStone1_Update(PlayState* play, u32 index, EffectSs* this) {
-    if ((this->life == 6) && (this->rReg0 != 0)) {
+    if ((this->life == 6) && this->rFreezeFadeFlash) {
+        //! @bug freezes the screen (see z_eff_ss_stone1.h)
         R_TRANS_FADE_FLASH_ALPHA_STEP = 0;
     }
 }
diff --git a/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.h b/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.h
index e9e3c11148..0559821590 100644
--- a/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.h
+++ b/src/overlays/effects/ovl_Effect_Ss_Stone1/z_eff_ss_stone1.h
@@ -6,7 +6,19 @@
 
 typedef struct EffectSsStone1InitParams {
     /* 0x00 */ Vec3f pos;
-    /* 0x0C */ s32 unk_C;
-} EffectSsStone1InitParams; // size = 0x
+
+    /**
+     * If this is non-zero, then on the 2nd frame after being spawned,
+     * the effect will set R_TRANS_FADE_FLASH_ALPHA_STEP to 0,
+     * which results in the flash simply freezing as it is after 2 frames -
+     * that is, the screen stays as bright as it is after 2 frames of a flash
+     * (basically stuck with an opaque layer of white),
+     * until R_TRANS_FADE_FLASH_ALPHA_STEP is set again or the play state is reentered
+     * (e.g. on entrance transitions).
+     *
+     * All current users of EffectSsStone1InitParams set this to false.
+     */
+    /* 0x0C */ s32 freezeFadeFlash;
+} EffectSsStone1InitParams; // size = 0x10
 
 #endif