diff --git a/src/actors/egg.asm b/src/actors/egg.asm
index c8184a1a..f748f133 100644
--- a/src/actors/egg.asm
+++ b/src/actors/egg.asm
@@ -34,6 +34,7 @@
 .IMPORT Func_InitActorDefault
 .IMPORT Func_InitActorSmokeExplosion
 .IMPORT Func_IsPointInAnySolidPlatform
+.IMPORT Func_PlaySfxPoof
 .IMPORT Func_PointHitsTerrain
 .IMPORT Func_SetActorCenterToPoint
 .IMPORT Func_SetPointToActorCenter
@@ -113,7 +114,7 @@ _Hatch:
     @noSpawn:
     ldx T0  ; egg actor index
 _Break:
-    ;; TODO: play a sound for the egg breaking/hatching
+    jsr Func_PlaySfxPoof  ; preserves X
     jmp Func_InitActorSmokeExplosion  ; preserves X
 _Remove:
     lda #eActor::None
diff --git a/src/devices/upgrade.asm b/src/devices/upgrade.asm
index ca494d5b..65359382 100644
--- a/src/devices/upgrade.asm
+++ b/src/devices/upgrade.asm
@@ -27,9 +27,9 @@
 .IMPORT FuncA_Objects_MoveShapeRightOneTile
 .IMPORT FuncA_Objects_SetShapePosToDeviceTopLeft
 .IMPORT FuncA_Objects_SetUpgradeTileIds
-.IMPORT FuncA_Room_PlaySfxSpawnUpgrade
 .IMPORT Func_FindEmptyActorSlot
 .IMPORT Func_InitActorSmokeExplosion
+.IMPORT Func_PlaySfxPoof
 .IMPORT Ram_ActorPosX_i16_0_arr
 .IMPORT Ram_ActorPosX_i16_1_arr
 .IMPORT Ram_ActorPosY_i16_0_arr
@@ -94,7 +94,7 @@ _SmokePuff:
     jsr Func_InitActorSmokeExplosion
     @done:
 _PlaySound:
-    jmp FuncA_Room_PlaySfxSpawnUpgrade
+    jmp Func_PlaySfxPoof
 .ENDPROC
 
 ;;;=========================================================================;;;
diff --git a/src/machines/blaster.asm b/src/machines/blaster.asm
index 4df8be3c..37a03d52 100644
--- a/src/machines/blaster.asm
+++ b/src/machines/blaster.asm
@@ -34,6 +34,7 @@
 .IMPORT FuncA_Objects_GetMachineLightTileId
 .IMPORT FuncA_Objects_SetShapePosToPlatformTopLeft
 .IMPORT Func_FindEmptyActorSlot
+.IMPORT Func_InitActorDefault
 .IMPORT Func_InitActorProjFireblast
 .IMPORT Func_IsPointInPlatform
 .IMPORT Func_MovePointDownByA
@@ -218,9 +219,10 @@ _Reflect:
     sta Ram_ActorState3_byte_arr, x  ; reflection timer
     bne _Continue  ; unconditional
 _Remove:
-    ;; TODO: turn to smoke
-    lda #eActor::None
-    sta Ram_ActorType_eActor_arr, x
+    sty T0  ; mirror platform index
+    ldy #eActor::SmokeParticle  ; param: actor type
+    jsr Func_InitActorDefault  ; preserves X and T0+
+    ldy T0  ; mirror platform index
 _Continue:
     dex
     .assert kMaxActors <= $80, error
diff --git a/src/rooms/core_south.asm b/src/rooms/core_south.asm
index 2aca9628..18da1277 100644
--- a/src/rooms/core_south.asm
+++ b/src/rooms/core_south.asm
@@ -47,6 +47,7 @@
 .IMPORT Func_MovePointDownByA
 .IMPORT Func_MovePointVert
 .IMPORT Func_Noop
+.IMPORT Func_PlaySfxPoof
 .IMPORT Func_SetActorCenterToPoint
 .IMPORT Func_SetFlag
 .IMPORT Func_SetPlatformTopToPointY
@@ -451,6 +452,7 @@ _ReleaseCratesFunc:
     jsr Func_SetActorCenterToPoint  ; preserves X
     jsr Func_InitActorSmokeExplosion
     @doneSmoke:
+    jsr Func_PlaySfxPoof
     ldx #eFlag::CoreSouthCorraHelped  ; param: flag
     jmp Func_SetFlag
 _SwimUpFunc:
diff --git a/src/rooms/lava_center.asm b/src/rooms/lava_center.asm
index 424f0398..81590884 100644
--- a/src/rooms/lava_center.asm
+++ b/src/rooms/lava_center.asm
@@ -58,6 +58,7 @@
 .IMPORT Func_MachineBlasterReadRegM
 .IMPORT Func_MovePlatformTopTowardPointY
 .IMPORT Func_MovePlatformVert
+.IMPORT Func_PlaySfxPoof
 .IMPORT Func_SetFlag
 .IMPORT Func_SetPointToActorCenter
 .IMPORT Ppu_ChrObjLava
@@ -608,7 +609,7 @@ _Mirrors:
     jsr Func_SetFlag  ; preserves T0+
     ldx T1  ; actor index
     jsr Func_InitActorSmokeExplosion  ; preserves X and T0+
-    ;; TODO: play a sound for the chain breaking
+    jsr Func_PlaySfxPoof  ; preserves X and T0+
     @continue:
     dex
     .assert kMaxActors <= $80, error
diff --git a/src/sounds/upgrade.asm b/src/sounds/poof.asm
similarity index 80%
rename from src/sounds/upgrade.asm
rename to src/sounds/poof.asm
index 4ea8de7a..a090445e 100644
--- a/src/sounds/upgrade.asm
+++ b/src/sounds/poof.asm
@@ -28,9 +28,8 @@
 
 .SEGMENT "PRG8"
 
-;;; SFX sequence data for pulse channel portion of the "spawn upgrade" sound
-;;; effect.
-.PROC Data_SpawnUpgradePulse_sSfxSeq_arr
+;;; SFX sequence data for pulse channel portion of the "poof" sound effect.
+.PROC Data_PoofPulse_sSfxSeq_arr
     .linecont +
     D_STRUCT sSfxSeq
     d_byte Duration_u8, 12
@@ -43,9 +42,8 @@
     .linecont -
 .ENDPROC
 
-;;; SFX sequence data for pulse channel portion of the "spawn upgrade" sound
-;;; effect.
-.PROC Data_SpawnUpgradeNoise_sSfxSeq_arr
+;;; SFX sequence data for pulse channel portion of the "poof" sound effect.
+.PROC Data_PoofNoise_sSfxSeq_arr
     D_STRUCT sSfxSeq
     d_byte Duration_u8, 15
     d_byte Env_bEnvelope, bEnvelope::NoLength | 3
@@ -57,18 +55,24 @@
 
 ;;;=========================================================================;;;
 
-.SEGMENT "PRGA_Room"
+.SEGMENT "PRG8"
 
-;;; Starts playing the sound for when an upgrade is spawned.
-;;; @preserve T0+
-.EXPORT FuncA_Room_PlaySfxSpawnUpgrade
-.PROC FuncA_Room_PlaySfxSpawnUpgrade
+;;; Starts playing the sound for a poof of smoke e.g. when an upgrade spawns,
+;;; or a chain is broken, or an egg hatches.
+;;; @preserve X, T0+
+.EXPORT Func_PlaySfxPoof
+.PROC Func_PlaySfxPoof
+    txa
+    pha
     ldx #eChan::Pulse2
-    ldya #Data_SpawnUpgradePulse_sSfxSeq_arr
+    ldya #Data_PoofPulse_sSfxSeq_arr
     jsr Func_PlaySfxSequence  ; preserves T0+
     ldx #eChan::Noise
-    ldya #Data_SpawnUpgradeNoise_sSfxSeq_arr
-    jmp Func_PlaySfxSequence  ; preserves T0+
+    ldya #Data_PoofNoise_sSfxSeq_arr
+    jsr Func_PlaySfxSequence  ; preserves T0+
+    pla
+    tax
+    rts
 .ENDPROC
 
 ;;;=========================================================================;;;