diff --git a/src/info.c b/src/info.c
index dc71ad163..fdeafc015 100644
--- a/src/info.c
+++ b/src/info.c
@@ -12937,7 +12937,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -12964,7 +12964,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -12991,7 +12991,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13018,7 +13018,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13045,7 +13045,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13072,7 +13072,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13099,7 +13099,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13126,7 +13126,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13153,7 +13153,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13180,7 +13180,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13207,7 +13207,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13234,7 +13234,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13261,7 +13261,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13288,7 +13288,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13315,7 +13315,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
@@ -13342,7 +13342,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		0,              // display offset
 		1000,           // mass
 		0,              // damage
-		sfx_None,       // activesound
+		sfx_crumbl,     // activesound
 		MF_NOBLOCKMAP|MF_NOCLIPTHING|MF_SCENERY|MF_NOCLIPHEIGHT,  // flags
 		S_NULL          // raisestate
 	},
diff --git a/src/p_floor.c b/src/p_floor.c
index af6274f28..18126f263 100644
--- a/src/p_floor.c
+++ b/src/p_floor.c
@@ -1797,10 +1797,13 @@ static mobj_t *SearchMarioNode(msecnode_t *node)
 void T_MarioBlockChecker(levelspecthink_t *block)
 {
 	line_t *masterline = block->sourceline;
-	if (SearchMarioNode(block->sector->touching_thinglist))
-		sides[masterline->sidenum[0]].midtexture = sides[masterline->sidenum[0]].bottomtexture;
-	else
-		sides[masterline->sidenum[0]].midtexture = sides[masterline->sidenum[0]].toptexture;
+	if (!(masterline->flags & ML_NOCLIMB)) // Don't change the textures of a brick block, just a question block
+	{
+		if (SearchMarioNode(block->sector->touching_thinglist))
+			sides[masterline->sidenum[0]].midtexture = sides[masterline->sidenum[0]].bottomtexture;
+		else
+			sides[masterline->sidenum[0]].midtexture = sides[masterline->sidenum[0]].toptexture;
+	}
 }
 
 // This is the Thwomp's 'brain'. It looks around for players nearby, and if
@@ -2878,17 +2881,35 @@ void EV_CrumbleChain(sector_t *sec, ffloor_t *rover)
 	fixed_t leftx, rightx;
 	fixed_t topy, bottomy;
 	fixed_t topz;
+	fixed_t widthfactor, heightfactor;
 	fixed_t a, b, c;
 	mobjtype_t type = MT_ROCKCRUMBLE1;
+	fixed_t spacing = (32<<FRACBITS);
+	tic_t lifetime = 3*TICRATE;
+	INT16 flags = 0;
 
-	// If the control sector has a special
-	// of Section3:7-15, use the custom debris.
-	if (GETSECSPECIAL(rover->master->frontsector->special, 3) >= 8)
-		type = MT_ROCKCRUMBLE1+(GETSECSPECIAL(rover->master->frontsector->special, 3)-7);
+#define controlsec rover->master->frontsector
+
+	for (i = 0; i < controlsec->linecount; i++)
+	{
+		if (controlsec->lines[i]->special == 14) // If we can use bustable block parameters, we will.
+		{
+			if (sides[controlsec->lines[i]->sidenum[0]].toptexture)
+				type = (mobjtype_t)sides[controlsec->lines[i]->sidenum[0]].toptexture; // Set as object type in p_setup.c...
+			if (sides[controlsec->lines[i]->sidenum[0]].textureoffset)
+				spacing = sides[controlsec->lines[i]->sidenum[0]].textureoffset;
+			if (sides[controlsec->lines[i]->sidenum[0]].rowoffset)
+				lifetime = (sides[controlsec->lines[i]->sidenum[0]].rowoffset>>FRACBITS);
+			flags = controlsec->lines[i]->flags;
+			break; // If someone has multiple parameter linedefs per control sector, TOUGH.
+		}
+	}
+
+#undef controlsec
 
 	// soundorg z height never gets set normally, so MEH.
 	sec->soundorg.z = sec->floorheight;
-	S_StartSound(&sec->soundorg, sfx_crumbl);
+	S_StartSound(&sec->soundorg, mobjinfo[type].activesound);
 
 	// Find the outermost vertexes in the subsector
 	for (i = 0; i < sec->linecount; i++)
@@ -2907,23 +2928,32 @@ void EV_CrumbleChain(sector_t *sec, ffloor_t *rover)
 			bottommostvertex = i;
 	}
 
-	leftx = sec->lines[leftmostvertex]->v1->x+(16<<FRACBITS);
+	leftx = sec->lines[leftmostvertex]->v1->x+(spacing>>1);
 	rightx = sec->lines[rightmostvertex]->v1->x;
-	topy = sec->lines[topmostvertex]->v1->y-(16<<FRACBITS);
+	topy = sec->lines[topmostvertex]->v1->y-(spacing>>1);
 	bottomy = sec->lines[bottommostvertex]->v1->y;
-	topz = *rover->topheight-(16<<FRACBITS);
+	topz = *rover->topheight-(spacing>>1);
 
-	for (a = leftx; a < rightx; a += (32<<FRACBITS))
+	widthfactor = (rightx + topy - leftx - bottomy)>>3;
+	heightfactor = (topz - *rover->bottomheight)>>2;
+
+	for (a = leftx; a < rightx; a += spacing)
 	{
-		for (b = topy; b > bottomy; b -= (32<<FRACBITS))
+		for (b = topy; b > bottomy; b -= spacing)
 		{
 			if (R_PointInSubsector(a, b)->sector == sec)
 			{
 				mobj_t *spawned = NULL;
-				for (c = topz; c > *rover->bottomheight; c -= (32<<FRACBITS))
+				for (c = topz; c > *rover->bottomheight; c -= spacing)
 				{
 					spawned = P_SpawnMobj(a, b, c, type);
-					spawned->fuse = 3*TICRATE;
+					if (flags & ML_EFFECT1)
+					{
+						P_InstaThrust(spawned, R_PointToAngle2(sec->soundorg.x, sec->soundorg.y, a, b), FixedDiv(P_AproxDistance(a - sec->soundorg.x, b - sec->soundorg.y), widthfactor));
+						P_SetObjectMomZ(spawned, FixedDiv((c - *rover->bottomheight), heightfactor), false);
+					}
+					if (lifetime != -1)
+						spawned->fuse = lifetime;
 				}
 			}
 		}
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 514952975..80cbcb486 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -3068,8 +3068,13 @@ nightsdone:
 						if (rover->flags & FF_MARIO
 						&& !(mo->eflags & MFE_VERTICALFLIP) // if you were flipped, your head isn't actually hitting your ceilingz is it?
 						&& *rover->bottomheight == mo->ceilingz) // The player's head hit the bottom!
+						{
 							// DO THE MARIO!
-							EV_MarioBlock(rover->master->frontsector, node->m_sector, *rover->topheight, mo);
+							if (rover->master->flags & ML_NOCLIMB) // Brick block!
+								EV_CrumbleChain(node->m_sector, rover);
+							else // Question block!
+								EV_MarioBlock(rover->master->frontsector, node->m_sector, *rover->topheight, mo);
+						}
 					}
 				} // Ugly ugly billions of braces! Argh!
 			}
diff --git a/src/p_setup.c b/src/p_setup.c
index b36bf0b80..659c45ed8 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -1476,6 +1476,7 @@ static void P_LoadSideDefs2(lumpnum_t lumpnum)
 				break;
 			}
 
+			case 14: // Bustable block parameter
 			case 425: // Calls P_SetMobjState on calling mobj
 			case 434: // Custom Power
 			case 442: // Calls P_SetMobjState on mobjs of a given type in the tagged sectors
diff --git a/src/p_spec.c b/src/p_spec.c
index d2ac5b6a9..0112d02a7 100644
--- a/src/p_spec.c
+++ b/src/p_spec.c
@@ -3712,7 +3712,7 @@ DoneSection2:
 			}
 			break;
 
-		case 7: // Bustable block sprite parameter
+		case 7: // N/A (formerly bustable block sprite parameters)
 		case 8:
 		case 9:
 		case 10: