As someone said before you may want to chill if you don't like the systems why are you ranting in this thread? And before my questions were mostly about seeing if I could just play some NES and genesis games on the go if I got a supaboy it's not that much to ask if someone had already figured it out.
1) I don't have it. 2) No, and I wrote that already, controllers only work in TV mode. 3) I own all those and can fire them up, just not this second but Starfox did work as I said already. 4) I don't have that either nor an everdrive, super powerpak or other copier/dev kit like devices.
So far yeah I think I would recommend it given you go in knowing what I wrote in the first post. If you can live with the d-pad being capable of going overly pushed causing possible weird behavior unless you stay to the outside of it w/out modding the dpad assembly. If you can live without Yoshi's Island and SFA2, then yes I can recommend it.
Kedawa, not really. The only advantage I'm aware of with RDP vs Supaboy v2 would be that Street Fighter Alpha 2 works and maybe Yoshi's Island(never seen it run just the other.) The RDP speakers are very poor and badly attached, the tv out cable with the unit is shit that needs replacing to get good signal to the tv, and the XYBA buttons are widely set apart in an diamond shape which makes playing awkward, and the system is flimsy, also a few were known for just burning up and stopping. But sure, if it can run those 2 games I guess it's better in that respect. Trust me I looked into both of these things since Spring as I'm very anti-clone system and the fixes to the Supaboy sold me.