Bizhawk SNES Cheat Code Problems

Does anybody have a problem with BizHawk and why the cheat codes won't work for any SNES game you play?

'Cause I've been having problems with BizHawk: The Cheat Codes I provided for any Looney Tunes-themed SNES Game won't work.

I've tried using Game Genie Cheat Codes for Taz-Mania and Road Runner's Death Valley Rally.

Neither of those games would work with the Game Genie cheat codes I provided.

Try them out for yourself if you don't believe me.