diff --git a/config/rel_slices.yml b/config/rel_slices.yml
index b3815710..6b7f0a28 100644
--- a/config/rel_slices.yml
+++ b/config/rel_slices.yml
@@ -171,6 +171,10 @@ ac_set_ovl_insect.c:
     .rodata: [0x80644E00, 0x80644E28]
     .data: [0x8068CDE8, 0x8068E3C0]
     .bss: [0x812FD048, 0x812FD270]
+ac_train_door.c:
+    .text: [0x804AC2D8, 0x804AC510]
+    .rodata: [0x80645F98, 0x80645FA8]
+    .data: [0x8068F5C0, 0x8068F600]
 m_huusui_room_ovl.c:
     .text: [0x804D1BBC, 0x804D2164]
     .rodata: [0x80646558, 0x806465C8]
diff --git a/include/ac_train_door.h b/include/ac_train_door.h
index df3dc59a..59d630fd 100644
--- a/include/ac_train_door.h
+++ b/include/ac_train_door.h
@@ -3,11 +3,25 @@
 
 #include "types.h"
 #include "m_actor.h"
+#include "c_keyframe.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+
+typedef struct traindoor_s {
+    ACTOR actor_class;
+    u8 pad [0x17C - 0x174];
+    cKF_SkeletonInfo_R_c keyframe;
+    u8 pad2 [0x210 - 0x1ed];
+    s_xyz work;
+    u8 pad3 [0x22e - 0x216];
+    s_xyz target;
+    u8 pad4[0x24c - 0x234];
+    int idle;
+}TRAINDOOR_ACTOR;
+
 extern ACTOR_PROFILE TrainDoor_Profile;
 
 #ifdef __cplusplus
diff --git a/include/audio.h b/include/audio.h
index 54e53971..9228515f 100644
--- a/include/audio.h
+++ b/include/audio.h
@@ -3,6 +3,7 @@
 
 #include "types.h"
 #include "audio_defs.h"
+#include "m_lib.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -22,6 +23,8 @@ extern void sAdo_SysLevStart(u8 id);
 
 extern void sAdo_SysTrgStart(u16 id);
 
+extern void sAdo_OngenTrgStart(u16 id, xyz_t* pos);
+
 extern void sAdos_KishaStatusLevel(f32 speed, u32 ongenNum1, u16 angle1, f32 distance1, u32 ongenNum2, u16 angle2, f32 distance2);
 extern void sAdos_KishaStatusTrg(u8 state);
 
diff --git a/include/c_keyframe.h b/include/c_keyframe.h
index 13f7f8f5..fee2dbbd 100644
--- a/include/c_keyframe.h
+++ b/include/c_keyframe.h
@@ -89,6 +89,8 @@ typedef int (*cKF_draw_callback)(GAME*, cKF_SkeletonInfo_R_c*, int, Gfx**, u8*,
 #define cKF_FRAMETIME (1.0f / cKF_FRAMERATE)
 #define cKF_EPSILON 0.008f
 
+extern int cKF_FrameControl_passCheck_now(cKF_FrameControl_c* fc, f32 current);
+
 extern f32 cKF_HermitCalc(f32 t, f32 tension, f32 p0, f32 p1, f32 m0, f32 m1);
 extern void cKF_SkeletonInfo_subRotInterpolation(f32 t, s16* out, s16 rot1, s16 rot2);
 
diff --git a/include/m_actor.h b/include/m_actor.h
index 9406b0ed..a3b5a1db 100644
--- a/include/m_actor.h
+++ b/include/m_actor.h
@@ -21,6 +21,7 @@ typedef void (*mActor_proc)(ACTOR*, GAME*);
 #define ACTOR_OBJ_BANK_NONE 0
 #define ACTOR_OBJ_BANK_3 3 /* TODO: rename, also likely an enum */
 #define ACTOR_OBJ_BANK_7 7
+#define ACTOR_OBJ_BANK_11 11
 #define ACTOR_OBJ_BANK_12 12
 
 enum actor_part {
diff --git a/include/m_name_table.h b/include/m_name_table.h
index cee631f9..53d56bbe 100644
--- a/include/m_name_table.h
+++ b/include/m_name_table.h
@@ -478,6 +478,8 @@ extern int mNT_check_unknown(mActor_name_t item_no);
 #define MISC_ACTOR_START 0x9000
 #define MISC_ACTOR_SAMPLE MISC_ACTOR_START
 
+#define TRAIN_DOOR 0xA011
+
 #define SP_NPC_START 0xD000
 #define SP_NPC_ARTIST (SP_NPC_START + 0) // D000
 #define SP_NPC_BROKER (SP_NPC_START + 1) // D001
diff --git a/rel/ac_train_door.c b/rel/ac_train_door.c
new file mode 100644
index 00000000..97d9d687
--- /dev/null
+++ b/rel/ac_train_door.c
@@ -0,0 +1,91 @@
+#include "ac_train_door.h"
+
+#include "audio.h"
+#include "m_rcp.h"
+#include "m_name_table.h"
+
+static void aTRD_actor_ct(ACTOR* actor, GAME* game);
+static void aTRD_actor_dt(ACTOR* actor, GAME* game);
+static void aTRD_actor_move(ACTOR* actor, GAME* game);
+static void aTRD_actor_draw(ACTOR* actor, GAME* game);
+
+ACTOR_PROFILE TrainDoor_Profile = {
+    mAc_PROFILE_TRAINDOOR,
+    ACTOR_PART_BG,
+    ACTOR_STATE_NO_DRAW_WHILE_CULLED | ACTOR_STATE_NO_MOVE_WHILE_CULLED,
+    TRAIN_DOOR,
+    ACTOR_OBJ_BANK_11,
+    sizeof(TRAINDOOR_ACTOR),
+    &aTRD_actor_ct,
+    &aTRD_actor_dt,
+    &aTRD_actor_move,
+    &aTRD_actor_draw,
+    NULL
+};
+
+extern cKF_Skeleton_R_c cKF_bs_r_obj_romtrain_door;
+extern cKF_Animation_R_c cKF_ba_r_obj_romtrain_door;
+
+static void aTRD_actor_ct(ACTOR* actor, GAME* game){
+    TRAINDOOR_ACTOR* traindoor = (TRAINDOOR_ACTOR*)actor;
+
+    cKF_SkeletonInfo_R_ct(&traindoor->keyframe, &cKF_bs_r_obj_romtrain_door, NULL, &traindoor->work, &traindoor->target);
+    cKF_SkeletonInfo_R_init(&traindoor->keyframe,traindoor->keyframe.skeleton, &cKF_ba_r_obj_romtrain_door,1.0f,51.0f,1.0f,
+    0.0f,0.0f,0,NULL);
+    traindoor->keyframe.morph_counter = 0.0f;
+    cKF_SkeletonInfo_R_play(&traindoor->keyframe);
+}
+
+static void aTRD_actor_dt(ACTOR* actor, GAME* game){
+    TRAINDOOR_ACTOR* traindoor = (TRAINDOOR_ACTOR*)actor;
+
+    cKF_SkeletonInfo_R_dt(&traindoor->keyframe);
+}
+
+static void aTRD_set_door_SE(ACTOR* actor){
+    TRAINDOOR_ACTOR* traindoor = (TRAINDOOR_ACTOR*)actor;
+
+    static f32 chk_pat[] = {2.0f, 27.0f};
+    static u16 se_no[] = {1042, 1043,0, 0,0,0, 0,0,0};
+    int i;
+
+    for(i = 0; i < 2; i++){
+
+        if(cKF_FrameControl_passCheck_now(&traindoor->keyframe.frame_control,chk_pat[i]) != 0){
+            sAdo_OngenTrgStart(se_no[i], &traindoor->actor_class.world_position);
+            return;
+        }
+    }
+}
+
+static void aTRD_actor_move(ACTOR* actor, GAME* game){
+    TRAINDOOR_ACTOR* traindoor = (TRAINDOOR_ACTOR*)actor;
+
+    if(traindoor->idle == 1){
+        traindoor->idle = 0;
+        traindoor->keyframe.frame_control.speed = 0.5f;
+    }
+
+    if(cKF_SkeletonInfo_R_play(&traindoor->keyframe) == 1){
+        traindoor->keyframe.frame_control.current_frame = traindoor->keyframe.frame_control.start_frame;
+        traindoor->keyframe.frame_control.speed = 0.0f;
+    }
+    aTRD_set_door_SE(actor);
+}
+
+static void aTRD_actor_draw(ACTOR* actor, GAME* game){
+    TRAINDOOR_ACTOR* traindoor = (TRAINDOOR_ACTOR*)actor;
+
+    cKF_SkeletonInfo_R_c* keyf = &traindoor->keyframe;
+    Gfx* mtx;
+    Mtx* mtxp;
+    
+    mtx = GRAPH_ALLOC(game->graph, (u32) keyf->skeleton->num_shown_joints * 64);
+
+    mtxp = (Mtx*)mtx;
+    if(mtxp != NULL){
+        _texture_z_light_fog_prim(game->graph);
+        texture_z_light_prim_xlu_disp(game->graph);
+        cKF_Si3_draw_R_SV(game,keyf, mtxp, NULL,NULL,NULL);
+    }
+}
\ No newline at end of file
diff --git a/rel/c_keyframe.c b/rel/c_keyframe.c
index 2abbc888..cfc0836a 100644
--- a/rel/c_keyframe.c
+++ b/rel/c_keyframe.c
@@ -59,8 +59,7 @@ static int cKF_FrameControl_passCheck(cKF_FrameControl_c* fc, f32 current,
   return 0;
 }
 
-extern int cKF_FrameControl_passCheck_now(cKF_FrameControl_c* fc, f32 current,
-                                          f32* out) {
+extern int cKF_FrameControl_passCheck_now(cKF_FrameControl_c* fc, f32 current) {
   f32 cur = fc->current_frame;
   f32 speed;
   int ret = 0;