diff --git a/README.md b/README.md
index 807a67c..ddddb8a 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,10 @@ entities:
             {ontime,offtime} = double[>0.0]
             start = {0,1}
 
-    -> 10 UNUSED
+    -> 10 (movable block)
+        [.. friction, mass] with
+            friction = double[>0.0]
+            mass = double[>0.0] (in kg)
 
     -> 11 (button trigger)
         [.. freq, dtime] with
@@ -104,4 +107,8 @@ entities:
             defaultState = {0, 1}
             dtime = double([>0.0] for time-limited press, or use -1.0 if no deactivation)
 
+    -> 14 (movable object-related button)
+        [.. freq] with
+            freq = int[0 - 15]
+
 ```
\ No newline at end of file
diff --git a/bin/back b/bin/back
index eb9e070..f2cf8aa 100755
Binary files a/bin/back and b/bin/back differ
diff --git a/levels/level_02/room_0 b/levels/level_02/room_0
index e0324a6..70515b8 100644
--- a/levels/level_02/room_0
+++ b/levels/level_02/room_0
@@ -33,9 +33,13 @@ Entities:
 [-15.0, 4.0, -10.0, 4.0, 1.0, 5.0, 0.0, 0.0, 255, 255, 255, 1, 0, 2, 0.0, 42.0, 0.0, 0.0, 2.0, 1]
 [-10.0, 4.0, -20.0, 5.0, 1.0, 5.0, 0.0, 0.0, 255, 255, 255, 1, 0, 2, 3.0, 0.0, 0.0, 0.0, 0.0, 0]
 
-[-5.0, 3.0, 5.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 10, 0.9, 1.0]
-[-5.0, 6.0, 5.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 10, 0.9, 1.0]
-[-5.0, 9.0, 5.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 10, 0.9, 1.0]
+[-5.0, 3.0, 5.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 10, 0.98, 1.0]
+[-5.0, 6.0, 5.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 10, 0.98, 1.0]
+[-5.0, 9.0, 5.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 10, 0.98, 1.0]
+
+[0.0, 0.0, 0.0, 2.0, 0.2, 2.0, 0.0, 0.0, 255, 255, 0, 1, 0, 14, 10]
+
+[4.0, 0.0, 0.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 128, 128, 1, 0, 12, 10, 0]
 
 [8.0, 1.0 , 8.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 128, 1, 0, 8, 100, 1, 128, 128, 128]
 [-8.0, 1.0, 8.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 6, get over it, 192, 192, 192]
diff --git a/obj/display.o b/obj/display.o
index 18243bc..ea7a77c 100644
Binary files a/obj/display.o and b/obj/display.o differ
diff --git a/obj/entities.o b/obj/entities.o
index 7f9871c..4b2a097 100644
Binary files a/obj/entities.o and b/obj/entities.o differ
diff --git a/obj/generation.o b/obj/generation.o
index a9372a2..004f61f 100644
Binary files a/obj/generation.o and b/obj/generation.o differ
diff --git a/obj/move.o b/obj/move.o
index 2a317fc..3b7b2b0 100644
Binary files a/obj/move.o and b/obj/move.o differ
diff --git a/src/display.c b/src/display.c
index 74b540e..6aa6508 100644
--- a/src/display.c
+++ b/src/display.c
@@ -176,8 +176,9 @@ void gl_resetTexture() {
 
 bool is_button_block_on(entity* ent) {
     return (
-        (ent->entity_type != 11 && ent->entity_type != 12) ||
+        (ent->entity_type != 11 && ent->entity_type != 12 && ent->entity_type != 14) ||
         (ent->entity_type == 11 && buttonSwitch[ent->metai1]) ||
+        (ent->entity_type == 14 && ent->metai2) ||
         (ent->entity_type == 12 && xor(buttonSwitch[ent->metai1], ent->metai2))
     );
 }
diff --git a/src/entities.c b/src/entities.c
index 8595b19..ae39cf8 100644
--- a/src/entities.c
+++ b/src/entities.c
@@ -289,6 +289,32 @@ void movableCrate_postStep(double x, double y, double z, double w, double h, dou
     }
 }
 
+// metai1 = button freq
+// metai2 = is triggered (0/1)
+void movCrateButton_postStep(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret) {
+    bool isIn = false;
+    for(int k = 0; k < current_room->ent_len*(1-isIn); k++) {
+        for(int d = 0; d < 8*(1-isIn); d++) {
+            if(
+                current_room->ents[k]->entity_type == 10 &&
+                distance_pt_cube_0_3d(ret->x+ret->w*(d%2==0), ret->y+ret->h*((d/2)%2==0), ret->z+ret->d*((d/4)%2==0), current_room->ents[k]->pos) <= 0.001
+            ) {
+                isIn = true;
+                ent->metai2 = 1;
+                if(!buttonSwitch[ent->metai1]) {
+                    //printf("In\n");
+                    buttonSwitch[ent->metai1] = true;
+                    buttonTimes[ent->metai1] = -1.0;
+                }
+            }
+        }
+    }
+    if(!isIn && ent->metai2 != 0) {
+        ent->metai2 = 0;
+        buttonSwitch[ent->metai1] = false;
+    }
+}
+
 void movableCrate_onHit(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret) {
     //printf("(+%lf, +%lf)\n", camvx, camvz);
     updateF_movableCrate(ret, (double)dtime, ent);
diff --git a/src/entities.h b/src/entities.h
index 4348d37..b397bcd 100644
--- a/src/entities.h
+++ b/src/entities.h
@@ -23,6 +23,7 @@ void spinning_platform(double x, double y, double z, double w, double h, double
 void math_block(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
 void lava_postStep(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
 void movableCrate_postStep(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
+void movCrateButton_postStep(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
 
 void movableCrate_onHit(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);
 void lava_onHit(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);    
diff --git a/src/generation.c b/src/generation.c
index 383b6f3..3116fca 100644
--- a/src/generation.c
+++ b/src/generation.c
@@ -153,6 +153,14 @@ void init_ent_generator(int n) {
     hashtbl_entities[13].updatePos = &math_block;
     hashtbl_entities[13].onHit = &active_math;
     hashtbl_entities[13].onDeath = NULL;
+
+    hashtbl_entities[14].id = 14;
+    hashtbl_entities[14].tex = 10;
+    hashtbl_entities[14].tex2 = 11;
+    hashtbl_entities[14].name = "movableBlockButton";
+    hashtbl_entities[14].updatePos = &movCrateButton_postStep;
+    hashtbl_entities[14].onHit = NULL;
+    hashtbl_entities[14].onDeath = NULL;
 }
 
 fct_entry* get_entry(int k0) {
@@ -678,6 +686,7 @@ void parse_one_room(int id, char* filename) {
             pool[id].area->ents[k]->metai1 = freq;
             pool[id].area->ents[k]->metad1 = acttime;
         } else if(entry->id == 12) {
+            // button interface
             int freq = read_int(ptr);
             int offstate = read_int(ptr);
 
@@ -690,6 +699,7 @@ void parse_one_room(int id, char* filename) {
             pool[id].area->ents[k]->metai1 = freq;
             pool[id].area->ents[k]->metai2 = offstate;
         } else if(entry->id == 13) {
+            // button block
             int defaultState = read_int(ptr);
             double activeTime = read_float(ptr);
 
@@ -702,6 +712,11 @@ void parse_one_room(int id, char* filename) {
             } else {
                 pool[id].area->ents[k]->tex2 = 9;
             }
+        } else if(entry->id == 14) {
+            // movable block button
+            int freq = read_int(ptr);
+
+            pool[id].area->ents[k]->metai1 = freq;
         } else {
             pool[id].area->ents[k]->metai3 = 0;
         }
diff --git a/src/move.c b/src/move.c
index 87acb45..e5ac3cb 100644
--- a/src/move.c
+++ b/src/move.c
@@ -268,7 +268,7 @@ void updateF_movableCrate(cube_0* cb, double dtime, entity* ent) {
             (dot3D(vt, normal) <= 0.0 && dot3D(vtdt, normal) >= 0.0) || 
             (dot3D(vt, normal) >= 0.0 && dot3D(vtdt, normal) <= 0.0)
         ) {
-            printf("%d\n", d);
+            //printf("%d\n", d);
             switch (d) {
             case 0:
                 ent->metad1 += camvx; break;