* SugarWiki/AwesomeMusic:
** Galaga Arrangement, part of ''Namco Classics Collection Vol. 1'', has a surprisingly incredible soundtrack. Particular mention goes to [[https://www.youtube.com/watch?v=eWm1a4LzK6s Nebula Zone]] and [[https://www.youtube.com/watch?v=QkVEfvra1Vc King Galaspark]].
** There's also the [[https://www.youtube.com/watch?v=TqytCvEK8F4 Galaga Medley]] in ''VideoGame/SuperSmashBrosUltimate'', which is a medley of all the very little amount of music and sound effects the game has to offer, put into a full blown song.
** In ''Galaga '88'', the themes for the "That's Galactic Dancin'" bonus stages, such as the [[https://www.youtube.com/watch?v=CWHTfGsIEgU Tango]] sequence.
*** The "Arrange Mode" featured in the ''Sharp X68000'' version of the game replaces these dances with several segments based off other Namco properties, such as Mappy and Pac-Man. [[https://www.youtube.com/watch?v=-WyyICpw1_k They're such a treat to listen to.]]
* ComplacentGamingSyndrome: In the original game, world-class players will start a 2-player game and play on the player 2 side. This is because player 1's score counter is only 6 digits long and will roll scores over 999,990 back to 0, but player 2 has a 7-digit score counter.
* EvenBetterSequel: To ''VideoGame/{{Galaxian}}''.
** ''Galaga '88'' to the first ''Galaga'', to those who actually played it.
** The jury is out on the [[NintendoHard maddeningly difficult]] ''Gaplus'', but the features it added (''your own'' TractorBeam that you can use to convert enemy fighters to your side) are pretty neat.
* GoodBadBugs:
** Enemies can be made to stop firing completely in ''Galaga''. This is done by killing all but the two left-most enemies on the first stage. Their rate of fire will gradually decrease over the span of about 15 minutes, to nothing [[note]][[http://computerarcheology.com/Arcade/Galaga/ This is due to them firing shots at X-coordinate 0 which do not move and clog up the 8 memory buffers reserved for tracking the locations of shots]][[/note]]. It will stay this way the rest of the game.
** There is a very small gap in the hitbox between your Dual Ship, so there's a slim chance that you can exploit it to allow an enemy missile to slip through without losing either of your ships, but this requires very lucky timing to pull off.
** It is possible to kill two enemies in a single shot and thus have a hit ratio of over 100%, up to 200% if you only make one-bullet double hits or don't fire anymore. [[CoolButInefficient Not that having a >100% ratio is any useful to scoring.]]
* SugarWiki/MostWonderfulSound: The special jingle that plays if you shoot down every enemy in a Challenging Stage.
** [[https://www.youtube.com/watch?v=0ie4U89t7Cs The intro music]] is a time-honored classic of arcade music.
* SequelDisplacement: Far more successful and well-known than its predecessor, ''Galaxian''.
* SuspiciouslySimilarSong: ''Galaga''[='=]s theme song sounds similar to some few notes from the ''Franchise/StarWars'' theme song.
----