Please add IR blaster and revamp everdrives with ir receiver so we can wireless reset and go back to the rom page 
Super NT, Mega SG, AVS NES / NT Mini and UltraHDMI N64 and all have built in hotkeys to do exactly what you want. FPGA consoles are the way to go anyway so that's my recommendation for NES, SNES, Genesis and N64 at least. Also I doubt designing a remote reset into a flash cart is as easy as adding an IR receiver.