Cybernoid - Better with an Emulator
Save States are the ONLY way to play this unrelentingly difficult NES game that is in the vein of a coin-operated space shooter arcade.
Nintendo Entertainment System games often look difficult to modern gamers, but my sister and I were NES gamers and STILL found this game to be impossible back in the early 90s. Don't get me wrong, we tried and we got amazingly far, but it was a SLOG!
With save states, this game actually becomes playable (but still very difficult).
Though the best thing about owning this cartidge was the trades! Since no one else owned Cybernoid, everyone was willing to trade for it, so we got access to Excite Bike, Mario 2, Contra, Donky Kong, Wrestle Mania, Punch Out, Paper Boy, etc... all through trading this cartridge out occasionally :-D