diff --git a/block_league/init.lua b/block_league/init.lua
index 8b3d785..dada244 100644
--- a/block_league/init.lua
+++ b/block_league/init.lua
@@ -17,6 +17,7 @@ arena_lib.register_minigame("block_league", {
 
   teams = { S("orange"), S("blue") },
   teams_color_overlay = { "orange", "blue"},
+  can_disable_teams = true,     -- For tutorial only
 
   camera_offset = {
     nil,
@@ -102,6 +103,7 @@ dofile(srcpath .. "/arena_lib/arena_editor.lua")
 dofile(srcpath .. "/arena_lib/on_celebration.lua")
 dofile(srcpath .. "/arena_lib/on_change_spectated_target.lua")
 dofile(srcpath .. "/arena_lib/on_death.lua")
+dofile(srcpath .. "/arena_lib/on_enable.lua")
 dofile(srcpath .. "/arena_lib/on_entering.lua")
 dofile(srcpath .. "/arena_lib/on_leaving.lua")
 dofile(srcpath .. "/arena_lib/on_prejoin.lua")
diff --git a/block_league/src/arena_lib/on_enable.lua b/block_league/src/arena_lib/on_enable.lua
new file mode 100644
index 0000000..a33b7c9
--- /dev/null
+++ b/block_league/src/arena_lib/on_enable.lua
@@ -0,0 +1,11 @@
+local S = minetest.get_translator("block_league")
+
+arena_lib.on_enable("block_league", function(arena, p_name)
+  if not arena.teams_enabled and (arena.mode == 1 or arena.mode == 2) then
+    arena_lib.print_error(p_name, S("This mode forcibly requires teams to work!"))
+  elseif arena.teams_enabled and arena.mode == 0 then
+    arena_lib.print_error(p_name, S("This mode forcibly requires no teams to work!"))
+  end
+
+  return true
+end)
\ No newline at end of file