diff --git a/js/format-dat.js b/js/format-dat.js
index cbc3128..912ce99 100644
--- a/js/format-dat.js
+++ b/js/format-dat.js
@@ -12,14 +12,17 @@ const TILE_ENCODING = {
     0x07: 'thinwall_w',
     0x08: 'thinwall_s',
     0x09: 'thinwall_e',
-    0x0a: 'dirt_block',
+    // This is MSCC's incomprehensible non-directional dirt block, which needs a direction for Lynx
+    // purposes; Tile World defaults it to north
+    0x0a: ['dirt_block', 'north'],
     0x0b: 'dirt',
     0x0c: 'ice',
     0x0d: 'force_floor_s',
-    0x0e: ['clone_block', 'north'],
-    0x0f: ['clone_block', 'west'],
-    0x10: ['clone_block', 'south'],
-    0x11: ['clone_block', 'east'],
+    // These are the "clone blocks", which for us are just regular blocks
+    0x0e: ['dirt_block', 'north'],
+    0x0f: ['dirt_block', 'west'],
+    0x10: ['dirt_block', 'south'],
+    0x11: ['dirt_block', 'east'],
     0x12: 'force_floor_n',
     0x13: 'force_floor_e',
     0x14: 'force_floor_w',
diff --git a/js/tileset.js b/js/tileset.js
index e0dc0e7..7aced5b 100644
--- a/js/tileset.js
+++ b/js/tileset.js
@@ -23,7 +23,6 @@ export const CC2_TILESET_LAYOUT = {
     key_yellow: [6, 1],
     key_green: [7, 1],
     dirt_block: [8, 1],
-    clone_block: [8, 1],
     // xray
     ice: [10, 1],
     ice_se: [11, 1],
@@ -372,11 +371,12 @@ export const TILE_WORLD_TILESET_LAYOUT = {
     thinwall_w: [0, 7],
     thinwall_s: [0, 8],
     thinwall_e: [0, 9],
-    dirt_block: [0, 10],
+    // This is the non-directed dirt block, which we don't have
+    // dirt_block: [0, 10],
     dirt: [0, 11],
     ice: [0, 12],
     force_floor_s: [0, 13],
-    clone_block: {
+    dirt_block: {
         north: [0, 14],
         west: [0, 15],
         south: [1, 0],
diff --git a/js/tiletypes.js b/js/tiletypes.js
index 1ab8b99..441bfe8 100644
--- a/js/tiletypes.js
+++ b/js/tiletypes.js
@@ -331,7 +331,7 @@ const TILE_TYPES = {
         draw_layer: LAYER_TERRAIN,
         on_arrive(me, level, other) {
             // TODO cc1 allows items under water, i think; water was on the upper layer
-            if (other.type.name === 'dirt_block' || other.type.name === 'clone_block') {
+            if (other.type.name === 'dirt_block') {
                 level.transmute_tile(other, 'splash');
                 level.transmute_tile(me, 'dirt');
             }
@@ -452,7 +452,7 @@ const TILE_TYPES = {
         // FIXME kills everything except ghosts, blobs, blocks
         // FIXME blobs spread slime onto floor tiles, even destroying wiring
         on_arrive(me, level, other) {
-            if (other.type.name === 'dirt_block' || other.type.name === 'clone_block' || other.type.name === 'ice_block') {
+            if (other.type.name === 'dirt_block' || other.type.name === 'ice_block') {
                 level.transmute_tile(me, 'floor');
             }
         },
@@ -516,15 +516,6 @@ const TILE_TYPES = {
         ignores: new Set(['fire']),
         movement_speed: 4,
     },
-    clone_block: {
-        draw_layer: LAYER_ACTOR,
-        // TODO is this in any way distinct from dirt block
-        blocks_all: true,
-        is_actor: true,
-        is_block: true,
-        ignores: new Set(['fire']),
-        movement_speed: 4,
-    },
     ice_block: {
         draw_layer: LAYER_ACTOR,
         blocks_all: true,
@@ -551,7 +542,6 @@ const TILE_TYPES = {
         movement_speed: 4,
         pushes: {
             dirt_block: true,
-            clone_block: true,
             ice_block: true,
             directional_block: true,
         },
@@ -652,7 +642,6 @@ const TILE_TYPES = {
             // TODO mirror players too
 
             dirt_block: 'ice_block',
-            clone_block: 'ice_block',
             ice_block: 'dirt_block',
 
             ball: 'walker',
@@ -910,7 +899,6 @@ const TILE_TYPES = {
         blocks_blocks: true,
         pushes: {
             dirt_block: true,
-            clone_block: true,
             ice_block: true,
             directional_block: true,
         },
@@ -1124,7 +1112,6 @@ const TILE_TYPES = {
         movement_speed: 4,
         pushes: {
             dirt_block: true,
-            clone_block: true,
             ice_block: true,
             directional_block: true,
         },
@@ -1143,7 +1130,6 @@ const TILE_TYPES = {
         ignores: new Set(['ice', 'ice_nw', 'ice_ne', 'ice_sw', 'ice_se']),
         pushes: {
             dirt_block: true,
-            clone_block: true,
             ice_block: true,
             directional_block: true,
         },