Mad max loads fine but wont start or react to controls.
Castlevania 3 tries to start up but doesnt get past the intro.(Same results from two different copies)
Paperboy wont react to controls.
Pinballs sound is not right but fine otherwise.
I believe this is all i have experienced first hand...
Ive heard river city ransom doesnt work on clones but i dont have a copy to test.I know some companies like Messiah have online list of noncompatible games on the web.Maybe this company does as well.Not sure how truthfull they are though.
I found several reviews of the fc twin but i dont know how accurate they would be.Basically its a NOAC so it has the same issues as most clones but apparently the snes portion is pretty good.Someone also said it has the same compatibility as a yobo.I didnt bother linking cause all you have to do is google fc twin compatibility and for all i know these people could be talking out of their asses.
I feel like im trying to talk you out of this purchase

.I guess i just hate my clone.My clone is a NOAC and its a pos.