diff --git a/include/types.h b/include/types.h
index 90d616197..ba2a8c8d8 100644
--- a/include/types.h
+++ b/include/types.h
@@ -328,6 +328,7 @@ struct MarioBodyState
     /*????*/ f32 lightingDirY;
     /*????*/ f32 lightingDirZ;
     /*????*/ u8 allowPartRotation;
+    /*????*/ bool mirrorMario; // some of these fields are updated for Mirror Mario too
     // u8 padding[4];
 };
 
diff --git a/src/game/interaction.c b/src/game/interaction.c
index f569ed366..c5ef686b4 100644
--- a/src/game/interaction.c
+++ b/src/game/interaction.c
@@ -1273,6 +1273,7 @@ static u8 resolve_player_collision(struct MarioState* m, struct MarioState* m2)
     f32 radius = m->marioObj->hitboxRadius * 2.0f;
 
     if (!m->marioBodyState || !m2->marioBodyState) { return FALSE; }
+    if (m->marioBodyState->mirrorMario || m2->marioBodyState->mirrorMario) { return FALSE; }
 
     f32* localTorso = m->marioBodyState->torsoPos;
     f32* remoteTorso = m2->marioBodyState->torsoPos;
diff --git a/src/game/mario_misc.c b/src/game/mario_misc.c
index 70c509422..8802cfbf0 100644
--- a/src/game/mario_misc.c
+++ b/src/game/mario_misc.c
@@ -424,6 +424,7 @@ Gfx* geo_mario_tilt_torso(s32 callContext, struct GraphNode* node, Mat4* mtx) {
     u8 plrIdx = geo_get_processing_object_index();
     struct MarioBodyState* bodyState = &gBodyStates[plrIdx];
     s32 action = bodyState->action;
+    bodyState->mirrorMario = gCurGraphNodeObject == &gMirrorMario[plrIdx];
 
     u8 charIndex = gNetworkPlayers[plrIdx].overrideModelIndex;
     if (charIndex >= CT_MAX) { charIndex = 0; }
@@ -458,6 +459,7 @@ Gfx* geo_mario_head_rotation(s32 callContext, struct GraphNode* node, Mat4* c) {
     u8 plrIdx = geo_get_processing_object_index();
     struct MarioBodyState* bodyState = &gBodyStates[plrIdx];
     s32 action = bodyState->action;
+    bodyState->mirrorMario = gCurGraphNodeObject == &gMirrorMario[plrIdx];
 
     bool marioActive = gMarioObjects[plrIdx] != NULL && gMarioObjects[plrIdx]->activeFlags != ACTIVE_FLAG_DEACTIVATED;
 
@@ -805,6 +807,7 @@ Gfx* geo_mario_set_player_colors(s32 callContext, struct GraphNode* node, UNUSED
     gNetworkPlayerColors[index] = color;
 
     struct MarioBodyState* bodyState = &gBodyStates[index];
+    bodyState->mirrorMario = gCurGraphNodeObject == &gMirrorMario[index];
 
     if (callContext == GEO_CONTEXT_RENDER) {
         gfx = geo_mario_create_player_colors_dl(index, NULL, NULL);
diff --git a/src/game/object_collision.c b/src/game/object_collision.c
index 40b97ee11..9288cb4b0 100644
--- a/src/game/object_collision.c
+++ b/src/game/object_collision.c
@@ -26,6 +26,8 @@ int detect_player_hitbox_overlap(struct MarioState* local, struct MarioState* re
     if (!local || !remote) { return FALSE; }
     if (local->marioObj == NULL || local->marioObj->oIntangibleTimer != 0) { return FALSE; }
     if (remote->marioObj == NULL || remote->marioObj->oIntangibleTimer != 0) { return FALSE; }
+    if (local->marioBodyState->mirrorMario) { return FALSE; }
+    if (remote->marioBodyState->mirrorMario) { return FALSE; }
 
     struct Object* a = local->marioObj;
     f32* aTorso = local->marioBodyState->torsoPos;
diff --git a/src/game/object_list_processor.c b/src/game/object_list_processor.c
index 019608a52..d707ab8e7 100644
--- a/src/game/object_list_processor.c
+++ b/src/game/object_list_processor.c
@@ -277,7 +277,7 @@ void bhv_mario_update(void) {
 
     // sanity check torsoPos, it isn't updated off-screen otherwise
     extern u32 gGlobalTimer;
-    if (gMarioState->marioBodyState && gMarioState->marioBodyState->updateTorsoTime != (gGlobalTimer - 1)) {
+    if (gMarioState->marioBodyState && !gMarioState->marioBodyState->mirrorMario && gMarioState->marioBodyState->updateTorsoTime != (gGlobalTimer - 1)) {
         vec3f_copy(gMarioState->marioBodyState->torsoPos, gMarioState->pos);
     }
 
diff --git a/src/pc/nametags.c b/src/pc/nametags.c
index 9bfc46eda..7f4bd3802 100644
--- a/src/pc/nametags.c
+++ b/src/pc/nametags.c
@@ -80,7 +80,7 @@ void nametags_render(void) {
             continue;
         }
 
-        if (m->marioBodyState->updateHeadPosTime != gGlobalTimer) { continue; }
+        if (m->marioBodyState->mirrorMario || m->marioBodyState->updateHeadPosTime != gGlobalTimer) { continue; }
 
         Vec3f pos;
         Vec3f out;