Ikari Warriors/YMMV

• Anticlimax Boss: The first game's final boss, which only requires you to hit any of the turrets surrounding it once to kill it. It's not at all uncommon for a gamer to arrive at the boss, only to discover that they accidentally managed to destroy it with a stray shot or grenade before it even appeared on-screen, leaving them wondering what exactly the pile of decaying flesh and broken machinery was doing there. Tellingly, the NES port instead turns this into the boss of the penultimate level, with a new, much harder final boss added in.
• Memetic Mutation: Two from Victory Road (the sequel):
  • "Warriors, show some guts!! You can't escape me! Come get me if you can! AHAHAHAHAAAA!!!!"
  • "Come on, let's fight!"
• Polished Port: The NES version of Ikari III: The Rescue, due to not even bothering to simulate the rotary contols, which in its arcade release, made things harder due to SNK essentially making the game from the run-and-gun of the first two to a beat-em-up. As a result, it actually turned out to be better than the Porting Disasters of the first two games on the same console, and a decent game in its own right.
• Porting Disaster:
  • The NES versions of the first two.
  • The first one on the Atari 2600.