diff --git a/parts/modes/spinren.lua b/parts/modes/spinren.lua
new file mode 100644
index 000000000..b0db97210
--- /dev/null
+++ b/parts/modes/spinren.lua
@@ -0,0 +1,76 @@
+---@param RND RandomGenerator
+local function randomizer(RND)
+    local last=RND:random(2)==1 and 1 or 4
+    local function get_next()
+        local list={1,2,3,1,3,2}
+        local ret=list[last]
+        last=last+1
+        if last>6 then last=1 end
+        return ret
+    end
+    local bag={}
+    local function fill_bag()
+        local weights=0
+        while weights<24 do
+            local x=get_next()
+            table.insert(bag,x)
+            weights=weights+(x==1 and 2 or 3)
+        end
+        local pos=RND:random(#bag)+1
+        table.insert(bag,pos,4)
+        if skip==1 then skip=0 end
+    end
+    return function()
+        if #bag==0 then fill_bag() end
+        return table.remove(bag,1)
+    end
+end
+local lines={
+    {1,2,3,4,0,0,5,6,7,8},
+    {7,6,5,0,0,0,4,3,2,1},
+    {1,2,3,4,0,0,0,5,6,7},
+    {7,6,5,0,0,0,0,4,3,2}
+}
+local function get_lines(n,f)
+    local ret={}
+    for _=1,n do
+        table.insert(ret,lines[f()])
+    end
+    return ret
+end
+
+return {
+    load=function()
+        PLY.newPlayer(1)
+        local our=PLY_ALIVE[1]
+        our.randomizer_spinren=randomizer(our.holeRND)
+        our:pushLineList(get_lines(20,our.randomizer_spinren))
+    end,
+    env={
+        lock=1e99,
+        drop=1e99,
+        infHold=true,
+        eventSet='sprintEff_40',
+        hook_drop=function(P)
+            if P.lastPiece.row==0 then
+                P:win('finish')
+            end
+            local up=MATH.clamp(20-P.stat.row+P.lastPiece.row,0,P.lastPiece.row)
+            P:pushLineList(get_lines(up,P.randomizer_spinren))
+        end
+    },
+    score=function(P) return {P.stat.atk/P.stat.row,P.stat.time} end,
+    scoreDisp=function(D) return string.format("%.3f",D[1]).." Efficiency   "..STRING.time(D[2]) end,
+    comp=function(a,b) return a[1]>b[1] or a[1]==b[1] and a[2]<b[2] end,
+    getRank=function(P)
+        if P.stat.row<10 then return end
+        local E=P.stat.atk/P.stat.row
+        return
+            E>=10 and 5 or
+            E>=9 and 4 or
+            E>=8 and 3 or
+            E>=6 and 2 or
+            E>=3 and 1 or
+            0
+    end
+}
\ No newline at end of file