* AdaptationDisplacement: When the PS1 sequel ''Blaster Master: Blasting Again'' was released in Japan, instead of following the original ''Metafight'' plot (see below), it actually followed the plot of the American version.
* [[GermansLoveDavidHasselhoff Americans Love Blaster Master]]: ''Metafight'' is not particularly well-remembered in Japan, probably due to the somewhat non-linear action-based gameplay. For the same reason, ''Blaster Master'' is '''beloved''' by gamers who cut their teeth in the NES era, as the game practically [[{{Metroidvania}} out-Metroided]] the original Metroid. The [[SugarWiki/AwesomeMusic awesome tunes]] helped this.
** This is so fantastically prominent that while ''Metafight'' practically fell by the wayside, America got a UK-developed ''exclusive'' sequel, a novelization, inspired several GameBoy ports, and by the time the ''Blasting Again'' rolled around, the American plotline ''superceded'' the Japanese one, even in Japan. And the game got a re-release on the Virtual Console due to, you guessed it, American pressure.
* AntiClimaxBoss: Enemy Below's third boss. Considering he was fairly hard in the first game... Here, he's a complete joke and can be dispatched without him getting a single hit against you.
* SugarWiki/AwesomeMusic:
** The first game has lots of it. For example, [[http://www.youtube.com/watch?v=FwMU9zkflYc this frenetic, yet catchy tune]] from Area 7.
** Or the classic theme from Area 1, or the Area 3 techno theme, or... hell, just call it an Awesome Soundtrack, really.
* CultClassic
* FirstInstallmentWins: Good luck finding any fans of ''2'', ''Enemy Below'', or ''Blasting Again''.
* GoodBadBugs:
** The "grenade-pause" trick in the first game.
** The UK version goes even further, pausing can prevent death Jason failing, [[GameBreakingBug getting trapped in a wall now shoots your upwards]] and combining these two with the door glitch allows you to complete the game without fighting the first seven bosses and leaving [[CoolCar SOPHIA]] at the start of the game.
* {{Macekre}}/{{Woolseyism}}: The Famicom version, ''Chō Wakusei Senki (Super Planetary War Chronicle) Metafight'' had a pretty standard space opera plot and setting. The game was set in the distant future on an alien planet and instead of a young boy looking for his missing frog, the main character was a space soldier sent to destroy an alien overlord. However, most of the plot is detailed only in the manual and only the opening and ending are actually different.
* PlayerPunch: The seventh boss battle, if one reads the aforementioned Scholastic Publishing tie-in, becomes one, as it turns out that the boss is [[spoiler:Jason's escaped pet frog, Fred]].
** [[spoiler: But when you beat the game, you see Jason and Fred sitting on SOPHIA's roof watching the enemy's stronghold crumble, so either Fred turned back to normal after being defeated and the game never bothered to show it or neither of the frog bosses was Fred and Jason found him somewhere between beating the final boss and escaping the enemy stronghold.]]
*** [[spoiler: The Worlds of Power novelization explains that the frog boss' appearance was merely a disguise, meant to torment Jason psychologically. The real Fred was alive and well.]]
* ThatOneBoss: In the first game, the sixth and seventh bosses. Not to mention the fifth boss if you didn't enter his room with your gun fully powered-up.