diff --git a/js/tileset.js b/js/tileset.js
index f1fa164..b37d6b5 100644
--- a/js/tileset.js
+++ b/js/tileset.js
@@ -133,7 +133,14 @@ export const CC2_TILESET_LAYOUT = {
     ball: [[10, 10], [11, 10], [12, 10], [13, 10], [14, 10]],
     steel: [15, 10],
 
-    // TODO teeth, seem to be missing north???
+    teeth: {
+        // NOTE: CC2 inexplicably dropped north teeth and just uses the south
+        // sprites instead
+        north: [[0, 11], [1, 11], [2, 11]],
+        east: [[3, 11], [4, 11], [5, 11]],
+        south: [[0, 11], [1, 11], [2, 11]],
+        west: [[6, 11], [7, 11], [8, 11]],
+    },
     swivel_sw: [9, 11],
     swivel_nw: [10, 11],
     swivel_ne: [11, 11],
diff --git a/js/tiletypes.js b/js/tiletypes.js
index 72931b7..df68c94 100644
--- a/js/tiletypes.js
+++ b/js/tiletypes.js
@@ -132,7 +132,7 @@ const TILE_TYPES = {
     water: {
         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') {
+            if (other.type.name == 'dirt_block' || other.type.name == 'clone_block') {
                 other.destroy();
                 me.become('dirt');
             }
@@ -266,6 +266,13 @@ const TILE_TYPES = {
         is_block: true,
         ignores: new Set(['fire']),
     },
+    clone_block: {
+        // TODO is this in any way distinct from dirt block
+        blocks: true,
+        is_object: true,
+        is_block: true,
+        ignores: new Set(['fire']),
+    },
     green_floor: {},
     green_wall: {
         blocks: true,
@@ -457,6 +464,7 @@ const TILE_TYPES = {
         movement_speed: 4,
         pushes: {
             dirt_block: true,
+            clone_block: true,
         },
         // FIXME this prevents thief from taking green key
         infinite_items: {