diff --git a/pokemonred_puffer/environment.py b/pokemonred_puffer/environment.py
index ac60f6c..e75164f 100644
--- a/pokemonred_puffer/environment.py
+++ b/pokemonred_puffer/environment.py
@@ -306,7 +306,7 @@ def init_mem(self):
         self.seen_hidden_objs = {}
 
         self.cut_coords = {}
-        self.cut_tiles = set([])
+        self.cut_tiles = {}
         self.cut_state = deque(maxlen=3)
 
         self.seen_start_menu = 0
@@ -668,7 +668,7 @@ def get_explore_map(self):
         explore_map = np.zeros(GLOBAL_MAP_SHAPE)
         for (x, y, map_n), v in self.seen_coords.items():
             gy, gx = local_to_global(y, x, map_n)
-            if gy >= explore_map.shape[0] or gx >= explore_map.shape[1]:
+            if 0 > gy >= explore_map.shape[0] or 0 > gx >= explore_map.shape[1]:
                 print(f"coord out of bounds! global: ({gx}, {gy}) game: ({x}, {y}, {map_n})")
             else:
                 explore_map[gy, gx] = v
diff --git a/pokemonred_puffer/global_map.py b/pokemonred_puffer/global_map.py
index a8b9118..7ed6c75 100644
--- a/pokemonred_puffer/global_map.py
+++ b/pokemonred_puffer/global_map.py
@@ -20,3 +20,6 @@ def local_to_global(r: int, c: int, map_n: int):
     except KeyError:
         print(f"Map id {map_n} not found in map_data.json.")
         return r + 0, c + 0
+    except IndexError:
+        print(f"Coord {map_x}, {map_y} out of bounds for map id {map_n}.")
+        return 0, 0