diff --git a/include/functions.h b/include/functions.h
index 9a81e2ded3..416c7ca29a 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -2552,7 +2552,7 @@ void func_80168DAC(PlayState* play);
 void Play_Main(PlayState* play);
 s32 Play_InCsMode(PlayState* play);
 f32 func_80169100(PlayState* play, MtxF* mtx, CollisionPoly** arg2, s32* arg3, Vec3f* feetPosPtr);
-// void func_801691F0(void);
+void func_801691F0(PlayState* play, MtxF* mtx, Vec3f* arg2);
 void* Play_LoadScene(PlayState* play, RomFile* entry);
 void func_8016927C(PlayState* play, s16 sParm2);
 // void func_801692C4(PlayState* play, UNK_TYPE1 uParm2);
diff --git a/spec b/spec
index 0e9d0a7817..334ff6bbb8 100644
--- a/spec
+++ b/spec
@@ -1758,8 +1758,7 @@ beginseg
     name "ovl_Effect_Ss_Blast"
     compress
     include "build/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.o"
-    include "build/data/ovl_Effect_Ss_Blast/ovl_Effect_Ss_Blast.data.o"
-    include "build/data/ovl_Effect_Ss_Blast/ovl_Effect_Ss_Blast.reloc.o"
+    include "build/src/overlays/effects/ovl_Effect_Ss_Blast/ovl_Effect_Ss_Blast_reloc.o"
 endseg
 
 beginseg
diff --git a/src/code/z_effect_soft_sprite_old_init.c b/src/code/z_effect_soft_sprite_old_init.c
index 6d1a9176e3..5fc51b0c33 100644
--- a/src/code/z_effect_soft_sprite_old_init.c
+++ b/src/code/z_effect_soft_sprite_old_init.c
@@ -298,7 +298,7 @@ void EffectSsBomb2_SpawnLayered(PlayState* play, Vec3f* pos, Vec3f* velocity, Ve
 // EffectSsBlast Spawn Functions
 
 void EffectSsBlast_Spawn(PlayState* play, Vec3f* pos, Vec3f* velocity, Vec3f* accel, Color_RGBA8* primColor,
-                         Color_RGBA8* envColor, s16 scale, s16 scaleStep, s16 sclaeStepDecay, s16 life) {
+                         Color_RGBA8* envColor, s16 scale, s16 scaleStep, s16 scaleStepDecay, s16 life) {
     EffectSsBlastInitParams initParams;
 
     Math_Vec3f_Copy(&initParams.pos, pos);
@@ -308,7 +308,7 @@ void EffectSsBlast_Spawn(PlayState* play, Vec3f* pos, Vec3f* velocity, Vec3f* ac
     Color_RGBA8_Copy(&initParams.envColor, envColor);
     initParams.scale = scale;
     initParams.scaleStep = scaleStep;
-    initParams.sclaeStepDecay = sclaeStepDecay;
+    initParams.scaleStepDecay = scaleStepDecay;
     initParams.life = life;
 
     EffectSs_Spawn(play, EFFECT_SS_BLAST, 128, &initParams);
diff --git a/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.c b/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.c
index bb4cada883..93353f28cc 100644
--- a/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.c
+++ b/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.c
@@ -1,27 +1,90 @@
 /*
  * File: z_eff_ss_blast.c
  * Overlay: ovl_Effect_Ss_Blast
- * Description:
+ * Description: Shockwave Effect
  */
 
 #include "z_eff_ss_blast.h"
+#include "objects/gameplay_keep/gameplay_keep.h"
+
+#define rPrimColorR regs[0]
+#define rPrimColorG regs[1]
+#define rPrimColorB regs[2]
+#define rPrimColorA regs[3]
+#define rEnvColorR regs[4]
+#define rEnvColorG regs[5]
+#define rEnvColorB regs[6]
+#define rEnvColorA regs[7]
+#define rAlphaStep regs[8]
+#define rScale regs[9]
+#define rScaleStep regs[10]
+#define rScaleStepDecay regs[11]
 
 #define PARAMS ((EffectSsBlastInitParams*)initParamsx)
 
-s32 EffectSsBlast_Init(PlayState* play, u32 index, EffectSs* this, void* initParamsx);
+u32 EffectSsBlast_Init(PlayState* play, u32 index, EffectSs* this, void* initParamsx);
 void EffectSsBlast_Update(PlayState* play, u32 index, EffectSs* this);
 void EffectSsBlast_Draw(PlayState* play, u32 index, EffectSs* this);
 
-#if 0
 const EffectSsInit Effect_Ss_Blast_InitVars = {
     EFFECT_SS_BLAST,
     EffectSsBlast_Init,
 };
 
-#endif
+u32 EffectSsBlast_Init(PlayState* play, u32 index, EffectSs* this, void* initParamsx) {
+    EffectSsBlastInitParams* initParams = PARAMS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Effect_Ss_Blast/EffectSsBlast_Init.s")
+    this->pos = initParams->pos;
+    this->pos.y += 5.0f;
+    this->velocity = initParams->velocity;
+    this->accel = initParams->accel;
+    this->gfx = gEffShockwaveDL;
+    this->life = initParams->life;
+    this->draw = EffectSsBlast_Draw;
+    this->update = EffectSsBlast_Update;
+    this->rPrimColorR = initParams->primColor.r;
+    this->rPrimColorG = initParams->primColor.g;
+    this->rPrimColorB = initParams->primColor.b;
+    this->rPrimColorA = initParams->primColor.a;
+    this->rEnvColorR = initParams->envColor.r;
+    this->rEnvColorG = initParams->envColor.g;
+    this->rEnvColorB = initParams->envColor.b;
+    this->rEnvColorA = initParams->envColor.a;
+    this->rAlphaStep = initParams->primColor.a / initParams->life;
+    this->rScale = initParams->scale;
+    this->rScaleStep = initParams->scaleStep;
+    this->rScaleStepDecay = initParams->scaleStepDecay;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Effect_Ss_Blast/EffectSsBlast_Draw.s")
+    return 1;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Effect_Ss_Blast/EffectSsBlast_Update.s")
+void EffectSsBlast_Draw(PlayState* play, u32 index, EffectSs* this) {
+    GraphicsContext* gfxCtx = play->state.gfxCtx;
+    MtxF mf;
+    s32 pad;
+    f32 radius;
+
+    OPEN_DISPS(gfxCtx);
+
+    radius = this->rScale * 0.0025f;
+
+    func_8012C2DC(play->state.gfxCtx);
+    gDPSetEnvColor(POLY_XLU_DISP++, this->rEnvColorR, this->rEnvColorG, this->rEnvColorB, this->rEnvColorA);
+    func_801691F0(play, &mf, &this->pos);
+    gDPSetPrimColor(POLY_XLU_DISP++, 0, 0, this->rPrimColorR, this->rPrimColorG, this->rPrimColorB, this->rPrimColorA);
+    Matrix_Put(&mf);
+    Matrix_Scale(radius, radius, radius, MTXMODE_APPLY);
+    gSPMatrix(POLY_XLU_DISP++, Matrix_NewMtx(gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gSPDisplayList(POLY_XLU_DISP++, this->gfx);
+
+    CLOSE_DISPS(gfxCtx);
+}
+
+void EffectSsBlast_Update(PlayState* play, u32 index, EffectSs* this) {
+    Math_StepToS(&this->rPrimColorA, 0, this->rAlphaStep);
+    this->rScale += this->rScaleStep;
+
+    if (this->rScaleStep != 0) {
+        this->rScaleStep -= this->rScaleStepDecay;
+    }
+}
diff --git a/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.h b/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.h
index 2a13227c36..72a264c038 100644
--- a/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.h
+++ b/src/overlays/effects/ovl_Effect_Ss_Blast/z_eff_ss_blast.h
@@ -11,7 +11,7 @@ typedef struct {
     /* 0x28 */ Color_RGBA8 envColor;
     /* 0x2C */ s16 scale;
     /* 0x2E */ s16 scaleStep;
-    /* 0x30 */ s16 sclaeStepDecay;
+    /* 0x30 */ s16 scaleStepDecay;
     /* 0x32 */ s16 life;
 } EffectSsBlastInitParams; // size = 0x34