diff --git a/js/game.js b/js/game.js
index 6ebc822..f1c7ddd 100644
--- a/js/game.js
+++ b/js/game.js
@@ -1187,6 +1187,8 @@ export class Level {
     }
 
     cycle_inventory(actor) {
+        if (this.stored_level.use_cc1_boots)
+            return;
         if (actor.movement_cooldown > 0)
             return;
 
@@ -1197,12 +1199,14 @@ export class Level {
         }
     }
 
-    drop_item(actor) {
+    drop_item(actor, force = false) {
+        if (this.stored_level.use_cc1_boots)
+            return;
         if (actor.movement_cooldown > 0)
             return;
 
         // Drop the oldest item, i.e. the first one
-        if (actor.toolbelt && ! actor.cell.get_item()) {
+        if (actor.toolbelt && (force || ! actor.cell.get_item())) {
             let name = actor.toolbelt.shift();
             this.pending_undo.push(() => actor.toolbelt.unshift(name));
             this.add_tile(new Tile(TILE_TYPES[name]), actor.cell);
@@ -1675,6 +1679,7 @@ export class Level {
 
     // Give an item to an actor, even if it's not supposed to have an inventory
     give_actor(actor, name) {
+        // TODO support use_cc1_boots here -- silently consume dupes, only do cc1 items
         if (! actor.type.is_actor)
             return false;
 
@@ -1693,6 +1698,11 @@ export class Level {
             }
             actor.toolbelt.push(name);
             this.pending_undo.push(() => actor.toolbelt.pop());
+
+            // Nothing can hold more than four items
+            if (actor.toolbelt.length > 4) {
+                this.drop_item(actor, true);
+            }
         }
         return true;
     }
diff --git a/js/main.js b/js/main.js
index 9756d78..a867c38 100644
--- a/js/main.js
+++ b/js/main.js
@@ -961,8 +961,12 @@ class Player extends PrimaryView {
         this.undo_button.disabled = ! this.level.has_undo();
         this.rewind_button.disabled = ! (this.level.has_undo() || this.state === 'rewinding');
 
-        this.drop_button.disabled = ! (this.state === 'playing' && this.level.player.toolbelt && this.level.player.toolbelt.length > 0);
-        this.cycle_button.disabled = ! (this.state === 'playing' && this.level.player.toolbelt && this.level.player.toolbelt.length > 1);
+        this.drop_button.disabled = ! (
+            this.state === 'playing' && ! this.level.stored_level.use_cc1_boots &&
+            this.level.player.toolbelt && this.level.player.toolbelt.length > 0);
+        this.cycle_button.disabled = ! (
+            this.state === 'playing' && ! this.level.stored_level.use_cc1_boots &&
+            this.level.player.toolbelt && this.level.player.toolbelt.length > 1);
         this.swap_button.disabled = ! (this.state === 'playing' && this.level.players.length > 1);
 
         // TODO can we do this only if they actually changed?