diff --git a/src/code_80057C60.c b/src/code_80057C60.c
index 0a8e22749..50622a10a 100644
--- a/src/code_80057C60.c
+++ b/src/code_80057C60.c
@@ -6101,6 +6101,10 @@ void render_battle_balloon(Player* player, s8 arg1, s16 arg2, s8 arg3) {
     sp12C[1] = player->unk_048[arg3];
     sp12C[2] = D_8018D7D0[arg1][arg2] - (D_8018D860[arg1][arg2] * coss(temp_t1)) -
                ((D_8018D890[arg1][arg2] * 8) * sins(temp_t1));
+
+    // @port: Tag the transform.
+    FrameInterpolation_RecordOpenChild((uintptr_t) player, arg1 | arg2 << 16);
+
     mtxf_translate_rotate(mtx, sp134, sp12C);
     mtxf_scale(mtx, var_f20);
     // convert_to_fixed_point_matrix(&gGfxPool->mtxEffect[gMatrixEffectCount], sp140);
@@ -6130,6 +6134,10 @@ void render_battle_balloon(Player* player, s8 arg1, s16 arg2, s8 arg3) {
     gSPVertex(gDisplayListHead++, gBalloonVertexPlane2, 4, 0);
     gSPDisplayList(gDisplayListHead++, common_square_plain_render);
     gSPTexture(gDisplayListHead++, 0x0001, 0x0001, 0, G_TX_RENDERTILE, G_OFF);
+
+    // @port Pop the transform id.
+    FrameInterpolation_RecordCloseChild();
+
     gMatrixEffectCount++;
 }
 
diff --git a/src/engine/actors/Finishline.cpp b/src/engine/actors/Finishline.cpp
index 0680e60bd..33f12120f 100644
--- a/src/engine/actors/Finishline.cpp
+++ b/src/engine/actors/Finishline.cpp
@@ -6,6 +6,7 @@
 #include "engine/Actor.h"
 #include "World.h"
 #include "assets/common_data.h"
+#include "src/port/Game.h"
 
 extern "C" {
 #include "macros.h"
@@ -20,6 +21,10 @@ extern f32 gKartGravityTable[];
 AFinishline::AFinishline(std::optional<FVector> pos) {
     Name = "Finishline";
 
+    if (GetCup() == GetBattleCup()) {
+        return;
+    }
+
     if (pos.has_value()) {
         // Set spawn point to the provided position
         Pos[0] = D_8015F8D0[0] = pos.value().x;