diff --git a/autogen/lua_definitions/manual.lua b/autogen/lua_definitions/manual.lua
index 309c3fe3b..e7de31ddf 100644
--- a/autogen/lua_definitions/manual.lua
+++ b/autogen/lua_definitions/manual.lua
@@ -74,6 +74,12 @@ function hook_chat_command(command, description, func)
     -- ...
 end
 
+--- @param command string
+--- @param description string
+function update_chat_command_description(command, description)
+    -- ...
+end
+
 --- @param hookEventType LuaHookedEventType
 --- @param func function
 function hook_event(hookEventType, func)
diff --git a/data/dynos_mgr_lvl.cpp b/data/dynos_mgr_lvl.cpp
index e7871689a..7645f8491 100644
--- a/data/dynos_mgr_lvl.cpp
+++ b/data/dynos_mgr_lvl.cpp
@@ -181,6 +181,15 @@ void *DynOS_Lvl_Override(void *aCmd) {
             gLevelScriptActive = (LevelScript*)aCmd;
         }
     }
+
+    auto& _CustomLevelScripts = DynOS_Lvl_GetArray();
+    for (auto& script : _CustomLevelScripts) {
+        if (aCmd == script.second->mLevelScripts[0]->mData) {
+            gLevelScriptModIndex = script.second->mModIndex;
+            gLevelScriptActive = (LevelScript*)aCmd;
+        }
+    }
+
     return aCmd;
 }
 
diff --git a/mods/arena/levels/level_arena_forts_entry.lvl b/mods/arena/levels/level_arena_forts_entry.lvl
new file mode 100644
index 000000000..a39c627dc
Binary files /dev/null and b/mods/arena/levels/level_arena_forts_entry.lvl differ
diff --git a/mods/arena/levels/level_arena_origin_entry.lvl b/mods/arena/levels/level_arena_origin_entry.lvl
new file mode 100644
index 000000000..aad504dcf
Binary files /dev/null and b/mods/arena/levels/level_arena_origin_entry.lvl differ
diff --git a/mods/arena/levels/level_arena_pillars_entry.lvl b/mods/arena/levels/level_arena_pillars_entry.lvl
new file mode 100644
index 000000000..729676768
Binary files /dev/null and b/mods/arena/levels/level_arena_pillars_entry.lvl differ
diff --git a/mods/arena/levels/level_arena_platforms_entry.lvl b/mods/arena/levels/level_arena_platforms_entry.lvl
new file mode 100644
index 000000000..0079a42b3
Binary files /dev/null and b/mods/arena/levels/level_arena_platforms_entry.lvl differ
diff --git a/mods/arena/levels/level_arena_sky_beach_entry.lvl b/mods/arena/levels/level_arena_sky_beach_entry.lvl
new file mode 100644
index 000000000..88d2bdbdc
Binary files /dev/null and b/mods/arena/levels/level_arena_sky_beach_entry.lvl differ
diff --git a/mods/arena/levels/level_bob_entry.lvl b/mods/arena/levels/level_bob_entry.lvl
deleted file mode 100644
index d32aecc9d..000000000
Binary files a/mods/arena/levels/level_bob_entry.lvl and /dev/null differ
diff --git a/mods/arena/levels/level_ccm_entry.lvl b/mods/arena/levels/level_ccm_entry.lvl
deleted file mode 100644
index 49f331c8c..000000000
Binary files a/mods/arena/levels/level_ccm_entry.lvl and /dev/null differ
diff --git a/mods/arena/levels/level_ddd_entry.lvl b/mods/arena/levels/level_ddd_entry.lvl
deleted file mode 100644
index 739ae5cf9..000000000
Binary files a/mods/arena/levels/level_ddd_entry.lvl and /dev/null differ
diff --git a/mods/arena/levels/level_jrb_entry.lvl b/mods/arena/levels/level_jrb_entry.lvl
deleted file mode 100644
index 11121132e..000000000
Binary files a/mods/arena/levels/level_jrb_entry.lvl and /dev/null differ
diff --git a/mods/arena/levels/level_wf_entry.lvl b/mods/arena/levels/level_wf_entry.lvl
deleted file mode 100644
index 6d9b68ecb..000000000
Binary files a/mods/arena/levels/level_wf_entry.lvl and /dev/null differ
diff --git a/mods/arena/main.lua b/mods/arena/main.lua
index 7ffda1b14..1ee3eaf16 100644
--- a/mods/arena/main.lua
+++ b/mods/arena/main.lua
@@ -23,19 +23,27 @@ gGameModes = {
     [GAME_MODE_TKOTH] = { shortName = 'TKOTH', name = 'Team King of the Hill', teams = true,  teamSpawns = false, useScore = true,  scoreCap = 90,  minPlayers = 4, maxPlayers = 99 },
 }
 
-gGameLevels = {
-    { level = LEVEL_BOB, name = 'Origin'    },
-    { level = LEVEL_CCM, name = 'Sky Beach' },
-    { level = LEVEL_WF,  name = 'Pillars' },
-    { level = LEVEL_JRB, name = 'Forts' },
-    { level = LEVEL_DDD, name = 'Platforms' },
+LEVEL_ARENA_ORIGIN    = level_register('level_arena_origin_entry',    COURSE_NONE, 'Origin',    'origin',    28000, 0x28, 0x28, 0x28)
+LEVEL_ARENA_SKY_BEACH = level_register('level_arena_sky_beach_entry', COURSE_NONE, 'Sky Beach', 'beach',     28000, 0x28, 0x28, 0x28)
+LEVEL_ARENA_PILLARS   = level_register('level_arena_pillars_entry',   COURSE_NONE, 'Pillars',   'pillars',   28000, 0x28, 0x28, 0x28)
+LEVEL_ARENA_FORTS     = level_register('level_arena_forts_entry',     COURSE_NONE, 'Forts',     'forts',     28000, 0x28, 0x28, 0x28)
+LEVEL_ARENA_PLATFORMS = level_register('level_arena_platforms_entry', COURSE_NONE, 'Platforms', 'platforms', 28000, 0x28, 0x28, 0x28)
+
+local gGameLevels = {
+    { level = LEVEL_ARENA_ORIGIN,    name = 'Origin'    },
+    { level = LEVEL_ARENA_SKY_BEACH, name = 'Sky Beach' },
+    { level = LEVEL_ARENA_PILLARS,   name = 'Pillars'   },
+    { level = LEVEL_ARENA_FORTS,     name = 'Forts'     },
+    { level = LEVEL_ARENA_PLATFORMS, name = 'Platforms' },
 }
 
-smlua_text_utils_course_acts_replace(COURSE_BOB, " 1 Origin", "?", "?", "?", "?", "?", "?")
-smlua_text_utils_course_acts_replace(COURSE_CCM, " 4 Sky Beach", "?", "?", "?", "?", "?", "?")
-smlua_text_utils_course_acts_replace(COURSE_WF, " 2 Pillars", "?", "?", "?", "?", "?", "?")
-smlua_text_utils_course_acts_replace(COURSE_JRB, " 3 Forts", "?", "?", "?", "?", "?", "?")
-smlua_text_utils_course_acts_replace(COURSE_DDD, " 4 Platforms", "?", "?", "?", "?", "?", "?")
+-- expose certain functions to other mods
+_G.Arena = {
+    add_level = function (levelNum, levelName)
+        table.insert(gGameLevels, { level = levelNum, name = levelName })
+        update_chat_command_description('arena-level', string.format('[%s] sets level', get_level_choices()))
+    end
+}
 
 -- setup global sync table
 gGlobalSyncTable.gameState = GAME_STATE_ACTIVE
@@ -466,7 +474,6 @@ function on_gamemode_command(msg)
 end
 
 function on_level_command(msg)
-
     local setLevel = nil
 
     for i, gl in ipairs(gGameLevels) do
@@ -498,15 +505,18 @@ for i, gm in ipairs(gGameModes) do
     sGameModeShortTimes = sGameModeShortTimes .. gm.shortName
 end
 
-sLevelChoices = ''
-for i, gl in ipairs(gGameLevels) do
-    if string.len(sLevelChoices) > 0 then
-        sLevelChoices = sLevelChoices .. '|'
+function get_level_choices()
+    local levelChoices = ''
+    for i, gl in ipairs(gGameLevels) do
+        if string.len(levelChoices) > 0 then
+            levelChoices = levelChoices .. '|'
+        end
+        levelChoices = levelChoices .. gl.name
     end
-    sLevelChoices = sLevelChoices .. gl.name
+    return levelChoices
 end
 
 if network_is_server() then
     hook_chat_command('arena-gamemode', string.format("[%s|random] sets gamemode", sGameModeShortTimes), on_gamemode_command)
-    hook_chat_command('arena-level', string.format('[%s] sets level', sLevelChoices), on_level_command)
+    hook_chat_command('arena-level', string.format('[%s] sets level', get_level_choices()), on_level_command)
 end
diff --git a/src/pc/lua/smlua_hooks.c b/src/pc/lua/smlua_hooks.c
index cec32e637..a039fba4c 100644
--- a/src/pc/lua/smlua_hooks.c
+++ b/src/pc/lua/smlua_hooks.c
@@ -1277,6 +1277,37 @@ int smlua_hook_chat_command(lua_State* L) {
     return 1;
 }
 
+int smlua_update_chat_command_description(lua_State* L) {
+    if (L == NULL) { return 0; }
+    if (!smlua_functions_valid_param_count(L, 2)) { return 0; }
+
+    const char* command = smlua_to_string(L, 1);
+    if (command == NULL || strlen(command) == 0 || !gSmLuaConvertSuccess) {
+        LOG_LUA_LINE("Update chat command: tried to update invalid command");
+        return 0;
+    }
+
+    const char* description = smlua_to_string(L, 2);
+    if (description == NULL || strlen(description) == 0 || !gSmLuaConvertSuccess) {
+        LOG_LUA_LINE("Update chat command: tried to update invalid description");
+        return 0;
+    }
+
+    for (int i = 0; i < sHookedChatCommandsCount; i++) {
+        struct LuaHookedChatCommand* hook = &sHookedChatCommands[i];
+        if (!strcmp(hook->command, command)) {
+            if (hook->description) {
+                free(hook->description);
+            }
+            hook->description = strdup(description);
+            return 1;
+        }
+    }
+
+    LOG_LUA_LINE("Update chat command: could not find command to update");
+    return 0;
+}
+
 bool smlua_call_chat_command_hook(char* command) {
     lua_State* L = gLuaState;
     if (L == NULL) { return false; }
@@ -1470,4 +1501,5 @@ void smlua_bind_hooks(void) {
     smlua_bind_function(L, "hook_chat_command", smlua_hook_chat_command);
     smlua_bind_function(L, "hook_on_sync_table_change", smlua_hook_on_sync_table_change);
     smlua_bind_function(L, "hook_behavior", smlua_hook_behavior);
+    smlua_bind_function(L, "update_chat_command_description", smlua_update_chat_command_description);
 }