diff --git a/src/prelaunch/conan.a b/src/prelaunch/conan.a
old mode 100644
new mode 100755
index c35ae5214..658222863
--- a/src/prelaunch/conan.a
+++ b/src/prelaunch/conan.a
@@ -32,6 +32,14 @@
          sta   $1b4e
          ;;sta $a973
 +
+         lda   #0
+         sta   $3f2
+         lda   #1
+         sta   $3f3
+         lda   #$A4
+         sta   $3f4      ; reset vector patch
+                         ; (only works after title music)
+
          +DISABLE_ACCEL
          jmp   $6ba5
 
diff --git a/src/prelaunch/mario.bros.a b/src/prelaunch/mario.bros.a
old mode 100644
new mode 100755
index 1bff5b2a6..1acb63fbb
--- a/src/prelaunch/mario.bros.a
+++ b/src/prelaunch/mario.bros.a
@@ -17,6 +17,9 @@
          lda   #$a9
          sta   $4299
 +
+         lda   #1
+         sta   $402F      ; reset vector patch
+
          +DISABLE_ACCEL
          jmp   $4000
 
diff --git a/src/prelaunch/mr.robot.a b/src/prelaunch/mr.robot.a
old mode 100644
new mode 100755
index 390aa68e5..6639fa101
--- a/src/prelaunch/mr.robot.a
+++ b/src/prelaunch/mr.robot.a
@@ -18,6 +18,11 @@
          sta   $777C      ; patch - don't decrease lives
          sta   $78C5      ; patch - don't increase lives
 +
+         lda   #$EA
+         sta   $13D9
+         sta   $13DA
+         sta   $13DB      ; reset vector patch
+
          jmp   $7600
 
 !if * > $1C0 {