diff --git a/README.md b/README.md
index 3c7ecca..c49ce38 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ A tool is provided to generate ROMs from MAME ROMs for all of the supported devi
 
 The Game and Watch (and related) series of devices used varied hardware for each device. The currently supported CPUs are:
 * SM510 - The "base" CPU the other's were based off of - Donkey Kong, Fire Attack, Mickey and Donald, etc
-* SM510 (Tiger Variant) - Street Fighter 2, Double Dragon, etc
+* SM510 (Tiger Variant)- Experimental - Street Fighter 2, Double Dragon, etc
 * SM5a - Ball, Octopus, etc
 
 The [ROM Generator](docs/rom_generator.md) will read the attached `manifest.json` file to determine what CPU is used by each game. You can manually look through this file yourself, or use the generator tool to determine if a game is supported at this time.