diff --git a/assets/game/mode/brik/exterior/sprint.lua b/assets/game/mode/brik/exterior/sprint.lua
index fd564695..f92d580d 100644
--- a/assets/game/mode/brik/exterior/sprint.lua
+++ b/assets/game/mode/brik/exterior/sprint.lua
@@ -142,6 +142,9 @@ return {
                 function(P)
                     if PROGRESS.getExteriorModeState('hidden') then return true end
                     if P.stat.line>=40 then
+                        if P.stat.piece<102.6 then
+                            PROGRESS.setExteriorUnlock('sequence')
+                        end
                         if P.stat.clears[1]+P.stat.clears[2]+P.stat.clears[3]==0 then
                             PROGRESS.setExteriorUnlock('hidden')
                         end