diff --git a/Main.py b/Main.py
index 61934050..92a4128e 100644
--- a/Main.py
+++ b/Main.py
@@ -26,7 +26,7 @@ from Fill import sell_potions, sell_keys, balance_multiworld_progression, balanc
 from ItemList import generate_itempool, difficulties, fill_prizes, customize_shops
 from Utils import output_path, parse_player_names
 
-__version__ = '0.3.1.1-u'
+__version__ = '0.3.1.0-u'
 
 
 class EnemizerError(RuntimeError):
diff --git a/MultiClient.py b/MultiClient.py
index 66c66e82..bf64a2d7 100644
--- a/MultiClient.py
+++ b/MultiClient.py
@@ -53,6 +53,11 @@ class Context:
         self.rom = None
         self.auth = None
         self.total_locations = None
+        self.mode_flags = None
+        self.key_drop_mode = False
+        self.shop_mode = False
+        self.retro_mode = False
+        self.ignore_count = 0
 
 def color_code(*args):
     codes = {'reset': 0, 'bold': 1, 'underline': 4, 'black': 30, 'red': 31, 'green': 32, 'yellow': 33, 'blue': 34,
@@ -88,7 +93,8 @@ SCOUTREPLY_LOCATION_ADDR = SAVEDATA_START + 0x4D8   # 1 byte
 SCOUTREPLY_ITEM_ADDR = SAVEDATA_START + 0x4D9       # 1 byte
 SCOUTREPLY_PLAYER_ADDR = SAVEDATA_START + 0x4DA     # 1 byte
 SHOP_ADDR = SAVEDATA_START + 0x302                  # 2 bytes?
-DYNAMIC_TOTAL_ADDR = SAVEDATA_START + 0x33E
+DYNAMIC_TOTAL_ADDR = SAVEDATA_START + 0x33E         # 2 bytes
+MODE_FLAGS = SAVEDATA_START + 0x33D         # 1 byte
 
 SHOP_SRAM_LEN = 0x29  # 41 tracked items
 location_shop_order = [Regions.shop_to_location_table.keys()] + [Regions.retro_shops.keys()]
@@ -776,7 +782,8 @@ async def console_loop(ctx : Context):
                     get_location_name_from_address(item.location), index, len(ctx.items_received)))
 
         if command[0] == '/missing':
-            for location in [k for k, v in Regions.lookup_name_to_id.items() if type(v) is int]:
+            for location in [k for k, v in Regions.lookup_name_to_id.items()
+                             if type(v) is int and not filter_location(ctx, k)]:
                 if location not in ctx.locations_checked:
                     logging.info('Missing: ' + location)
         if command[0] == '/getitem' and len(command) > 1:
@@ -804,6 +811,16 @@ def get_location_name_from_address(address):
     return Regions.lookup_id_to_name.get(address, f'Unknown location (ID:{address})')
 
 
+def filter_location(ctx, location):
+    if not ctx.key_drop_mode and ('Key Drop' in location or 'Pot Key' in location):
+        return True
+    if not ctx.shop_mode and location in Regions.flat_normal_shops:
+        return True
+    if not ctx.retro_mode and location in Regions.flat_retro_shops:
+        return True
+    return False
+
+
 async def track_locations(ctx : Context, roomid, roomdata):
     new_locations = []
 
@@ -813,10 +830,20 @@ async def track_locations(ctx : Context, roomid, roomdata):
         if ttl > 0:
             ctx.total_locations = ttl
 
+    if ctx.mode_flags is None:
+        flags = await snes_read(ctx, MODE_FLAGS, 1)
+        ctx.key_drop_mode = flags[0] & 0x1
+        ctx.shop_mode = flags[0] & 0x2
+        ctx.retro_mode = flags[0] & 0x4
+
     def new_check(location):
         ctx.locations_checked.add(location)
-        logging.info(f"New check: {location} ({len(ctx.locations_checked)}/{ctx.total_locations})")
-        new_locations.append(Regions.lookup_name_to_id[location])
+        ignored = filter_location(ctx, location)
+        if ignored:
+            ctx.ignore_count += 1
+        else:
+            logging.info(f"New check: {location} ({len(ctx.locations_checked)-ctx.ignore_count}/{ctx.total_locations})")
+            new_locations.append(Regions.lookup_name_to_id[location])
 
     try:
         if roomid in location_shop_ids:
diff --git a/Rom.py b/Rom.py
index cefe7313..1430aec5 100644
--- a/Rom.py
+++ b/Rom.py
@@ -27,7 +27,7 @@ from EntranceShuffle import door_addresses, exit_ids
 
 
 JAP10HASH = '03a63945398191337e896e5771f77173'
-RANDOMIZERBASEHASH = '0a34dc667a29125f09b10aeb1e06b83c'
+RANDOMIZERBASEHASH = '0de33d06fdb9c8cac765047037b39363'
 
 
 class JsonRom(object):
@@ -774,6 +774,9 @@ def patch_rom(world, rom, player, team, enemized, is_mystery=False):
 
     if world.keydropshuffle[player]:
         rom.write_byte(0x140000, 1)
+    multiClientFlags = ((0x1 if world.keydropshuffle[player] else 0) | (0x2 if world.shopsanity[player] else 0)
+                        | (0x4 if world.retro[player] else 0))
+    rom.write_byte(0x140001, multiClientFlags)
 
     write_int16(rom, 0x187010, credits_total)  # dynamic credits
     if credits_total != 216:
diff --git a/asm/keydropshuffle.asm b/asm/keydropshuffle.asm
index a150774f..70e80047 100644
--- a/asm/keydropshuffle.asm
+++ b/asm/keydropshuffle.asm
@@ -26,7 +26,7 @@ Sprite_LoadProperties:
 org $288000 ;140000
 ShuffleKeyDrops:
 db 0
-ShuffleKeyDropsReserved:
+MultiClientFlags: ; 140001 -> stored in SRAM at 7ef33d
 db 0
 
 LootTable: ;PC: 140002
diff --git a/data/base2current.bps b/data/base2current.bps
index fabbaa26..f30bfa99 100644
Binary files a/data/base2current.bps and b/data/base2current.bps differ