diff --git a/rogueviz/ru/entity.cpp b/rogueviz/ru/entity.cpp
index 012b6a58..b890bee1 100644
--- a/rogueviz/ru/entity.cpp
+++ b/rogueviz/ru/entity.cpp
@@ -129,7 +129,11 @@ void entity::apply_walls() {
     if(walls[b].flags & W_DOWNWARD) continue;
     allside(x, y, b);
     if(walls[b].flags & blocking) {
-      if(walls[b].flags & W_BOUNCY) { vel.y = -vel.y; apply_grav(); apply_grav(); if(vel.y > 0) vel.y = 0; on_bounce = true; goto again; }
+      if(walls[b].flags & W_BOUNCY) {
+        vel.y = -vel.y;
+        if(walls[b].flags & W_HYPERBOUNCY) vel.y *= 10;
+        apply_grav(); apply_grav(); if(vel.y > 0) vel.y = 0; on_bounce = true; goto again;
+        }
       on_floor = true;
       if(walls[b].flags & W_FROZEN) on_ice = true;
       vel.y /= 2;
@@ -157,7 +161,11 @@ void entity::apply_walls() {
     eWall b = current_room->at(x, y);
     allside(x, y, b);
     if(walls[b].flags & W_BLOCK) {
-      if(walls[b].flags & W_BOUNCY) { vel.y = -vel.y; apply_grav(); apply_grav(); on_bounce = true; goto again; }
+      if(walls[b].flags & W_BOUNCY) {
+        vel.y = -vel.y;
+        if(walls[b].flags & W_HYPERBOUNCY) vel.y *= 10;
+        apply_grav(); apply_grav(); on_bounce = true; goto again;
+        }
       vel.y /= 2;
       if(abs(vel.y) < 1e-6) vel.y = 0;
       if(pixel_to_block(get_pixel_bbox_at(where + vel)).miny > y) where.y += vel.y;
@@ -182,7 +190,11 @@ void entity::apply_walls() {
     allside(x, y, b);
     if((walls[b].flags & W_DOWNWARD) && b == current_room->at(x-1, y)) continue;
     if(walls[b].flags & W_BLOCK) {
-      if(walls[b].flags & W_BOUNCY) { vel.x = -vel.x; on_bounce = true; goto again; }
+      if(walls[b].flags & W_BOUNCY) {
+        vel.x = -vel.x;
+        if(walls[b].flags & W_HYPERBOUNCY) vel.x *= 10;
+        on_bounce = true; goto again;
+        }
       if(freezing()) { hit_wall(); }
       if(burning()) {
         if(b == wWoodWall) current_room->replace_block_frev(x, y, wAir);
diff --git a/rogueviz/ru/globals.cpp b/rogueviz/ru/globals.cpp
index b718686d..ad2214f2 100644
--- a/rogueviz/ru/globals.cpp
+++ b/rogueviz/ru/globals.cpp
@@ -64,7 +64,7 @@ enum eWall {
   wSecretPassageHHidden, wSecretPassageH,
   wSign, wWallSign, wTimeDoor,
   wBottomSpike, wRogueWallHidden, wRogueWall, wRightSlope, wLeftSlope, wLeftSlopedRoof, wRightSlopedRoof,
-  wWeakWall, wStrangeSign, wWalkSpikes, wGUARD };
+  wWeakWall, wStrangeSign, wWalkSpikes, wHyperBouncy, wGUARD };
 
 flagtype W_BLOCK = 1;
 flagtype W_TRANS = 2;
@@ -133,6 +133,7 @@ ruwall walls[qwall] = {
   {"weak wall", "#", 0xC08080FF, W_BLOCK | W_STABLE, "These walls are quite weak, and can be destroyed with a weapon powerful enough, for example, an axe."},
   {"strange sign", "X", 0x90909080, W_TRANS, "A strange sign is drawn in the background."},
   {"walkable spikes", "|", 0xC08080FF, W_TRANS | W_PAIN_DOWN, "You can walk through these spikes, but falling into them would hurt."},
+  {"hyper-bouncy wall", "#", 0xC04040FF, W_BLOCK | W_BOUNCY | W_HYPERBOUNCY, "Like walls, but things really bounce off them."},
   };
 
 int sel = 1;