diff --git a/assets/game/mode/brik/exterior/sequence.lua b/assets/game/mode/brik/exterior/sequence.lua
index eb7735f2..9001fb41 100644
--- a/assets/game/mode/brik/exterior/sequence.lua
+++ b/assets/game/mode/brik/exterior/sequence.lua
@@ -2,8 +2,8 @@ local function cutField_event_always(P)
     P.modeData.initTimer=P.modeData.initTimer-1
     if P.modeData.initTimer==872 then
         local mat=P.field._matrix
-        local cutHeight=#mat<=5 and 3 or 4
-        while #mat>=cutHeight do table.remove(mat) end
+        local cutHeight=#mat<=5 and 2 or 3
+        while #mat>cutHeight do table.remove(mat) end
         P:createMoveEffect(1,cutHeight,P.settings.fieldW,20)
         P:playSound('frenzy')
     elseif P.modeData.initTimer<=0 then
diff --git a/assets/game/mode/brik/exterior/sprint.lua b/assets/game/mode/brik/exterior/sprint.lua
index 15e3f933..32e7ff2b 100644
--- a/assets/game/mode/brik/exterior/sprint.lua
+++ b/assets/game/mode/brik/exterior/sprint.lua
@@ -142,15 +142,21 @@ return {
                 function(P)
                     if PROGRESS.getExteriorUnlock('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
                         return true
                     end
                 end,
+                function(P)
+                    if PROGRESS.getExteriorUnlock('sequence') then return true end
+                    if P.stat.line>=40 then
+                        if P.stat.piece<102.6 then
+                            PROGRESS.setExteriorUnlock('sequence')
+                        end
+                        return true
+                    end
+                end,
             },
             drawInField=mechLib.brik.misc.lineClear_event_drawInField,
             -- drawOnPlayer=mechLib.brik.misc.lineClear_event_drawOnPlayer,