diff --git a/dino.asm b/dino.asm
index 599e46c..653195d 100644
--- a/dino.asm
+++ b/dino.asm
@@ -483,7 +483,11 @@ noInsert
     sta score+3
     ; if score gets next 100 - level up
     inc diff_level
-    inc score+2
+    lda diff_level
+    cmp #DIFF_LEVELS+1
+    bne @+
+    dec diff_level
+@   inc score+2
     lda score+2
     cmp #"9"+1  ; 9+1 character code
     bne ScoreReady
diff --git a/dino.xex b/dino.xex
index dfafe68..891a0a0 100644
Binary files a/dino.xex and b/dino.xex differ
diff --git a/td.xex b/td.xex
index 77bcb24..15f7d46 100644
Binary files a/td.xex and b/td.xex differ