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->''Cracking... \\
Security attack''

''Rez'' is a RailShooter produced by Tetsuya Mizuguchi and developed by Creator/{{Sega}} that's set in a futuristic computer ''supernetwork'' called the K-project where much of the data flow is controlled by an AI named Eden. Eden has become overwhelmed with the amount of knowledge gathered on the network, and then a virus infects her, causing her to doubt her existence and enter a shutdown sequence, which will mess things up big time since society as a whole depends too much on technology. The gamer plays a hacker, logging into the K-project system to reboot Eden while destroying any viruses or firewalls that happen to inhibit progress, and analyzing other sub-areas of the network to gain access to Eden's location. With visuals heavily inspired by the Russian painter Wassily Kandinsky, the game's music and sound react to the player's actions in a way that allows you to partially compose the background music as you play.

''Rez'' was released on both the UsefulNotes/SegaDreamcast and the UsefulNotes/{{PlayStation 2}} in November 2001 in Japan, and in early 2002 in Europe and North America (though North America [[NoExportForYou did not get the Dreamcast release]]). Due to its weak sales, it soon became a rare gem. However, thanks to the release of ''[[UpdatedRerelease Rez HD]]'' on UsefulNotes/XboxLiveArcade in 2008, anyone with a UsefulNotes/{{Xbox 360}} and access to Xbox Live can now not only enjoy the game for 10 dollars (at least in the U.S.), but with even more stunning high-definition visuals and discrete 5.1 channel audio as well. ''Rez Infinite'' was released for the UsefulNotes/PlayStation4 in October 2016, and utilizes the [=PlayStation=] VR headset to immerse players further into the world of ''Rez''. Enhance Games, founded by Mizuguchi, is handling the port, which now supports 1080 visuals, 7.1 audio, and allows 120 frames-per-second on the VR headset. This version was later brought to UsefulNotes/{{Steam}} in August 2017, with higher resolution textures and maintaining VR support, now using the Vive or Oculus Rift.

The game received a sequel in the form of a SpiritualSuccessor, ''VideoGame/ChildOfEden'', also produced by Mizuguchi and developed by Creator/QEntertainment in 2011. The game was first released for the UsefulNotes/XBox360, utilizing Microsoft's new Kinect interface, and was later released for the UsefulNotes/PlayStation3 which also utilized the Playstation Move motion controllers. It is about eliminating viruses in order to secure the first AI "birth", Lumi, the AI duplication of the first space-born human girl.

Not to be confused with [=ReZ=], the host of the video game soundtrack review show WebVideo/ReZonanceSoundtrackReviews. But it does use the song “Buggie Running Beeps” from this game as its ThemeTune, though. It should definitely not to be confused with the song by Music/{{Underworld}} (although the game's title was inspired by it). Nor should it be confused with the arch-nemesis of VideoGame/{{Gex}}.

!!These games contain examples of:

* AfterBossRecovery: Not with the stage 1-4 bosses, but after defeating each of the Personal Firewalls guarding the last boss, you get health and overdrives (if you can snatch them up fast enough).
* ArtShift: Area X features more particle effects than the original Areas, and a visual style closer to ''VideoGame/ChildOfEden''.
* AIIsACrapshoot: Kind of. It's not really Eden going evil so much as her having a massive breakdown.
* AllThereInTheManual: The story for ''Rez'' is found in both manuals and supplemental material.
* AncientEgypt / PyramidPower: The design motif for Area 1.
* AncientGreece: The design motif for Area 2.
* AndIMustScream: Implied by the system if you lose to the boss:
-->[[AC:The system is trying to shut down, trapping you inside! Defend yourself until [Earth/Mars/Venus/Uranus].MEGA/GIGA/TERA is destroyed or self-destructs!]]
* ArabianNightsDays: The design motif for Area 3.
* AscendToAHigherPlaneOfExistence: What the ending could be interpreted as.
* BeehiveBarrier: Venus's shell.
* BishonenLine: Followed by the player, unusually; each level-up makes the humanoid player avatar slightly less abstract- except the penultimate form is a glowing sphere, and the ultimate form? [[spoiler: A 2001-style space fetus]].
* BonusDungeon: The Lost Area and Area X.
* BossRush: An unlockable mode. In addition, the last boss features abbreviated versions of the first 4 bosses before you fight the real thing.
* BrownNote: The game's ''mission statement''.
* ComputerVirus: What the player is supposed to be shooting, and what the player character could be interpreted as. It's also interpreted a computer virus caused Eden to doubt her existence.
* ContentWarnings: ''Rez'' warns players susceptible to seizures that they might have to exercise caution while playing.
* CoresAndTurretsBoss: Earth, the Area 1 boss. Venus, the Area 3 boss has a massive wall of turrets as its outermost protective layer.
* {{Cyberspace}}
* CyberpunkIsTechno: Both artistically and musically.
* DeadlyWalls:
** The second phase of Mars, the Area 2 boss, throws these at you.
** Area 4 has a number of wall enemies; each one is defeated by shooting its four glowing nodes out.
** Area 5 has the Gates of Truth that separate each section. If you don't shoot out the 8 locks in time, you'll still gain analysis (you'll always have 100% by the end), but you'll lose a form in the process.
* DrivenToSuicide: What Eden is doing if you don't stop her in time.
* DummiedOut: The Rez beta [[http://www.youtube.com/watch?v=KA6glWxMcRc used a mix]] of Underworld's ''Cowgirl'' and ''Born Slippy'' for Area 1. Area 2 used Aphex Twin's "Come to Daddy", Area 3 used Ken Ishii/Flare's "Extra", and area 4 used The Chemical Brothers' "Music Responce", however sources are not entirely clear on 2 through 4. (Area 5 was [[http://www.youtube.com/watch?v=klrCjkY5vU4 already using]] ''Mind Killer''). Only a [[http://www.youtube.com/watch?v=NwBhUMU09wU handful of samples]] made it to the final release.
* EasyModeMockery: Travelling mode gives you invincibility, but does not save your stats nor does it let you access Area 5.
* ExtremeGraphicalRepresentation
* GuestFighter: The Morolian from ''VideoGame/SpaceChannel5''.
* HollywoodHacking: Not as absurd as ''{{Hackers}}'', but close.
* JidaiGeki: The design motif for Area 4.
* JokeCharacter: The Morolian. It's essentially like being on the Zeroth Form (making you a {{One Hit Point Wonder}}) ''and'' you can't go up a form (meaning you always stay that way). It's basically there as a {{Self Imposed Challenge}} and, of course, as a {{Shout Out}} to ''VideoGame/SpaceChannel5''.
* LogicBomb: Eden is shutting herself down since a virus infected her and she thinks she's "surrounded by paradoxes".
* MacrossMissileMassacre: A common tactic of many bosses and occasionally a few enemies. Can be one of the most dangerous parts of a fight because unlike in many games, there's no way to dodge attacks, so you have to shoot down every missile. If you get overwhelmed you can go from 5th form to game over in a few seconds.
* MarathonBoss: The bosses of Area 2 and Area 5.
* MasterComputer: Eden.
* MindScrew: Pretty much the entire game, but ''especially'' the Trance Mission mode, whose BGM is complete cacophony.
* MultipleEndings: A ItsAWonderfulFailure for losing to the Area 5 boss, a partial ending for defeating it, a GainaxEnding for defeating it ''and'' staying in your final form, and a GoldenEnding for defeating it while in your final form '''and''' get a 100% clear in the whole game.
* NintendoHard: Surprisingly averted, for a game that shares a lot of tropes with {{Shoot Em Up}}s. You die in one hit, have no mid-stage checkpoints and have to shoot down waves of enemies, but the game isn't especially hard, since you lock onto enemies instead of having to manually shoot them.
** However, getting the good ending is ''extremely'' {{Nintendo Hard}} as it requires you to complete the fifth level and defeat the final boss while in the final form i.e. you must not take a single hit throughout the entire level and boss fight.
*** There's also a best ending which not only requires you to finish in final form, but take out ''every single'' enemy in the final stage. It should be noted that the relative length of the final stage, plus the fact that certain targets on the final boss drop Progress Nodes, mean it's very possible (but much harder) to fulfill the criteria after taking a hit or two.
* NoPlotNoProblem: The all new Area X.
* OffTheRails: A literal example in Area X, which allows for free movement.
* OneHitPointWonder: Each form can only take one hit before you go down to the next one. If you get hit when you're playing as the zeroth form, it's {{game over}}. You start at first form and can rank up by collecting pick-ups from enemies.
** There's also an unlockable [[VideoGame/SpaceChannel5 Morolian]] skin. When using it, you're a true OneHitPointWonder since you can't upgrade your form.
* PowerPerversionPotential: In Japan, the game shipped with what was called [[ExactlyWhatItSaysOnTheTin The Trance Vibrator]]. Designer Tetsuya Mizuguchi says it has "no sexual meaning"...[[http://www.gamegirladvance.com/archives/2002/10/26/sex_in_games_rezvibrator.html right]]. The Xbox Live Arcade remake offers vibration for three more controllers in lieu of Trance Vibrator support.
* RhythmGame: You hear music beats in place of sounds when you aim and fire, and your actions align with the music.
* SceneryPorn
* ScoringPoints: Score Attack mode. Optimal scoring strategies revolve around getting as many x8 lockons as you can. Unfortunately, so is dragging on boss battles.
* SecretLevel: Lost Area.
* SequentialBoss: Venus has three parts--a massive wall of laser turrets, seemingly endless streams of manic flying fish, and the core itself.
** [[spoiler:Eden]], the boss of Area 5 treads the line between this and a BossRush.
* ShootTheBullet: Because the game is a rail shooter and you usually have no way to move your character, shooting down bullets, missiles, and whatever else is aimed at you is the only way you can defend yourself.
* ShoutOut:
** The final level's music features prominent usage of the phrase, "[[{{Franchise/Dune}} Fear is the mind-killer]]".
** The Russian artist Wassily Kandinsky is credited for being a huge inspiration behind the game's visuals and goal to invoke synesthesia.
* SmartBomb: The overdrives.
* SuspiciousVideoGameGenerosity: The boss area of Area 5 starts by upgrading you to Final Form, and then you get support items between each of the sub-bosses. Given that the FinalBoss will happily indulge in MacrossMissileMassacre, you will very likely need all of this help.
* UpdatedRerelease: The ''[=PS2=]'' re-release, ''Rez HD'' on XBLA, and ''Rez Infinite'' for the [=PS4=] and [=PC=].
* VariableMix: By far one of the most prominent examples outside of a RhythmGame.
* WakeUpCallBoss: Mars.TERA is far stronger than its own .GIGA counterpart, let alone Earth from Area 1. It throws barrier walls at the player twice as often (including mixing in walls that are twice as powerful), and its tentacle-guns fire much more often and rapidly.
* TheWorldIsJustAwesome: The final stage, when you're floating above the world, and after going through the evolution cycle set up throughout the rest of the stage.

-> ''Security breached \\
Analyzing Data 100%''