diff --git a/configure.py b/configure.py
index 29fe43d6..7c5babf7 100644
--- a/configure.py
+++ b/configure.py
@@ -1272,7 +1272,7 @@ config.libs = [
             Object(Matching, "effect/ef_hirameki_hikari.c"),
             Object(Matching, "effect/ef_ikigire.c"),
             Object(Matching, "effect/ef_impact_star.c"),
-            Object(NonMatching, "effect/ef_kagu_happa.c"),
+            Object(Matching, "effect/ef_kagu_happa.c"),
             Object(NonMatching, "effect/ef_kamifubuki.c"),
             Object(Matching, "effect/ef_kangaeru.c"),
             Object(Matching, "effect/ef_kantanhu.c"),
diff --git a/src/effect/ef_hanabi_botan1.c b/src/effect/ef_hanabi_botan1.c
index fc4fbbe9..dd4f1bf6 100644
--- a/src/effect/ef_hanabi_botan1.c
+++ b/src/effect/ef_hanabi_botan1.c
@@ -10,7 +10,6 @@ static void eHanabiBotan1_mv(eEC_Effect_c* effect, GAME* game);
 static void eHanabiBotan1_dw(eEC_Effect_c* effect, GAME* game);
 
 #define CALC_EASE(x) (1.0f - sqrtf(1.0f - (x)))
-
 #define EFFECT_LIFETIME 110
 
 eEC_PROFILE_c iam_ef_hanabi_botan1 = {
diff --git a/src/effect/ef_kagu_happa.c b/src/effect/ef_kagu_happa.c
index cab6939a..ea755b0a 100644
--- a/src/effect/ef_kagu_happa.c
+++ b/src/effect/ef_kagu_happa.c
@@ -1,10 +1,19 @@
 #include "ef_effect_control.h"
+#include "m_common_data.h"
+#include "m_malloc.h"
+#include "m_rcp.h"
+#include "sys_matrix.h"
+#include "m_debug.h"
+#include "m_player_lib.h"
 
 static void eKagu_Happa_init(xyz_t pos, int prio, s16 angle, GAME* game, u16 item_name, s16 arg0, s16 arg1);
 static void eKagu_Happa_ct(eEC_Effect_c* effect, GAME* game, void* ct_arg);
 static void eKagu_Happa_mv(eEC_Effect_c* effect, GAME* game);
 static void eKagu_Happa_dw(eEC_Effect_c* effect, GAME* game);
 
+#define CALC_EASE(x) (1.0f - sqrtf(1.0f - (x)))
+#define EFFECT_LIFETIME 36
+
 eEC_PROFILE_c iam_ef_kagu_happa = {
     // clang-format off
     &eKagu_Happa_init,
@@ -18,17 +27,54 @@ eEC_PROFILE_c iam_ef_kagu_happa = {
 };
 
 static void eKagu_Happa_init(xyz_t pos, int prio, s16 angle, GAME* game, u16 item_name, s16 arg0, s16 arg1) {
-    // TODO
+    eEC_CLIP->make_effect_proc(eEC_EFFECT_KAGU_HAPPA, pos, NULL, game, NULL, item_name, prio, arg0, arg1);
 }
 
 static void eKagu_Happa_ct(eEC_Effect_c* effect, GAME* game, void* ct_arg) {
-    // TODO
+    PLAYER_ACTOR* player = GET_PLAYER_ACTOR_GAME(game);
+    effect->offset = effect->position;
+    effect->position = player->actor_class.world.position;
+    effect->position.y += 20.f;
+    effect->position.x += sin_s(player->actor_class.world.angle.y) * 10.f;
+    effect->position.z += cos_s(player->actor_class.world.angle.y) * 10.f;
+    effect->acceleration = effect->position;
+    effect->scale = ZeroVec;
+    effect->timer = EFFECT_LIFETIME;
+    effect->effect_specific[0] = 0;
 }
 
 static void eKagu_Happa_mv(eEC_Effect_c* effect, GAME* game) {
-    // TODO
+    effect->position.x =
+        eEC_CLIP->calc_adjust_proc(effect->timer, 8, EFFECT_LIFETIME, effect->offset.x, effect->acceleration.x);
+    effect->position.y =
+        eEC_CLIP->calc_adjust_proc(effect->timer, 8, EFFECT_LIFETIME, effect->offset.y, effect->acceleration.y);
+    effect->position.z = eEC_CLIP->calc_adjust_proc(effect->timer, 8, 0x1c, effect->offset.z, effect->acceleration.z);
+    add_calc(&effect->scale.x, 0.01f, CALC_EASE(0.25f), 0.0015f, 5e-5f);
+    effect->scale.y = effect->scale.z = effect->scale.x;
+    if (effect->timer > 10) {
+        effect->position.y += ((effect->timer - 14.f) - 4.f) * (-10.f / 98.f) * ((effect->timer - 14.f) - 4.f) + 20.f;
+        effect->effect_specific[0] += 0x924;
+    } else if (effect->timer == 2) {
+        effect->position.y += 5.f;
+        eEC_CLIP->effect_make_proc(1, effect->position, effect->prio, 0, game, effect->item_name, 0, 3);
+    }
 }
 
 static void eKagu_Happa_dw(eEC_Effect_c* effect, GAME* game) {
-    // TODO
+    s16 s = sin_s(effect->effect_specific[0]) * 5120.f;
+    GAME_PLAY* play = (GAME_PLAY*)game;
+    OPEN_DISP(game->graph);
+    _texture_z_light_fog_prim(game->graph);
+    Matrix_translate(effect->position.x, effect->position.y, effect->position.z, FALSE);
+    if (!effect->arg0) {
+        Matrix_RotateZ(s, TRUE);
+        Matrix_mult(&play->billboard_matrix, TRUE);
+    }
+    Matrix_scale(effect->scale.x * (GETREG(MYKREG, 0x1b) * 0.01f + 1.f),
+                 effect->scale.y * (GETREG(MYKREG, 0x1b) * 0.01f + 1.f),
+                 effect->scale.z * (GETREG(MYKREG, 0x1b) * 0.01f + 1.f), TRUE);
+    gSPMatrix(NEXT_POLY_OPA_DISP, _Matrix_to_Mtx_new(game->graph), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gSPDisplayList(NEXT_POLY_OPA_DISP, aMR_IconNo2Gfx1(effect->arg0));
+    gSPDisplayList(NEXT_POLY_OPA_DISP, aMR_IconNo2Gfx2(effect->arg0));
+    CLOSE_DISP(game->graph);
 }