diff --git a/games/sonic-mania/screenshots/1.png b/games/sonic-mania/screenshots/1.png
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diff --git a/games/sonic-mania/screenshots/2.png b/games/sonic-mania/screenshots/2.png
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index 0000000..731eaf5
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diff --git a/games/sonic-mania/screenshots/3.png b/games/sonic-mania/screenshots/3.png
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diff --git a/games/sonic-mania/screenshots/4.png b/games/sonic-mania/screenshots/4.png
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diff --git a/patches/01009AA000FAA000/1.00 Dev Menu/exefs/devmenu.pchtxt b/patches/01009AA000FAA000/1.00 Dev Menu/exefs/devmenu.pchtxt
new file mode 100644
index 0000000..a19bc82
--- /dev/null
+++ b/patches/01009AA000FAA000/1.00 Dev Menu/exefs/devmenu.pchtxt	
@@ -0,0 +1,12 @@
+# For use on Sonic Mania v1.00 only
+
+@nsobid-E3D99D48B8F09DF8D60B2030235311DF
+
+@flag offset_shift 0x100
+
+// Dev Menu - Press Minus to activate
+# Made by SuperSonic16, tested by Slashiee
+# Thanks yuzu! <3
+
+@enabled
+00209F7C D503201F
diff --git a/patches/01009AA000FAA000/1.00 Dev Menu/patch.dat b/patches/01009AA000FAA000/1.00 Dev Menu/patch.dat
new file mode 100644
index 0000000..5ac2394
--- /dev/null
+++ b/patches/01009AA000FAA000/1.00 Dev Menu/patch.dat	
@@ -0,0 +1,4 @@
+title = "Dev Menu (v1.00)"
+description = "Pressing minus will give you access to the game's debug menu. Requires the base version of the game, which is v1.00."
+author = "SuperSonic16"
+types = ["IPSwitch"]
\ No newline at end of file