diff --git a/src/objects/battle-ufo.cpp b/src/objects/battle-ufo.cpp
index 055567beb..a980eeb71 100644
--- a/src/objects/battle-ufo.cpp
+++ b/src/objects/battle-ufo.cpp
@@ -123,6 +123,8 @@ public:
 		ufo->sprzoff(ofs * spawner->scale());
 
 		ufo->spawner(spawner);
+
+		ufo->extravalue1 = 0; // Lifetime
 	}
 };
 
@@ -134,6 +136,8 @@ void Obj_BattleUFOThink(mobj_t *mobj)
 {
 	UFO* ufo = static_cast<UFO*>(mobj);
 
+	ufo->extravalue1++;
+
 	ufo->bob();
 
 	if ((leveltime/2) & 1)
@@ -141,7 +145,12 @@ void Obj_BattleUFOThink(mobj_t *mobj)
 		ufo->spawn_beam();
 	}
 
-	if (!battleovertime.enabled)
+	if ((ufo->extravalue1 % (TICRATE*2)) == 0)
+	{
+		S_StartSound(ufo, sfx_s3ka5);
+	}
+
+	if (!battleovertime.enabled && ufo->extravalue1 <= 5*TICRATE)
 	{
 		Obj_PointPlayersToXY(mobj->x, mobj->y);
 	}
diff --git a/src/p_inter.c b/src/p_inter.c
index 5dae5dc82..dfe72f981 100644
--- a/src/p_inter.c
+++ b/src/p_inter.c
@@ -3163,6 +3163,10 @@ boolean P_DamageMobj(mobj_t *target, mobj_t *inflictor, mobj_t *source, INT32 da
 			Obj_EndBungee(player);
 			K_BumperInflate(target->player);
 
+			// Explosions are explicit combo setups.
+			if (damagetype & DMG_EXPLODE)
+				player->bumperinflate = 0;
+
 			if (player->spectator == false && !(player->charflags & SF_IRONMAN))
 			{
 				UINT32 skinflags = (demo.playback)
diff --git a/src/sounds.c b/src/sounds.c
index 1339fd384..f40be3c58 100644
--- a/src/sounds.c
+++ b/src/sounds.c
@@ -566,7 +566,7 @@ sfxinfo_t S_sfx[NUMSFX] =
   {"s3ka2",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, "Launch"},
   {"s3ka3",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, "Rising charge"},
   {"s3ka4",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, "Powering up"},
-  {"s3ka5",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, ""},
+  {"s3ka5",  false,  64,  16, -1, NULL, 0,        -1,  -1, LUMPERROR, ""}, // bufo x8away
   {"s3ka6",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, "Attraction fizzle"},
   {"s3ka7",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, "Countdown beep"},
   {"s3ka8",  false,  64,  0, -1, NULL, 0,        -1,  -1, LUMPERROR, "Energy"},