[[quoteright:320:http://static.tvtropes.org/pmwiki/pub/images/pkm_brown_and_prism_5200.PNG]]
[[caption-width-right:320:Top: Pokémon Brown Bottom: Pokémon Prism]]

''Pokémon Brown'' and ''Pokémon Prism'' are two ''huge'' {{ROMHack}}s of Franchise/{{Pokemon}} games by ''[=KoolBoyMan=]'', based on ''[[VideoGame/PokemonRedAndBlue Pokémon Red]]'' and ''[[VideoGame/PokemonGoldAndSilver Pokémon Gold]]'', respectively. They are by far among the most well-known Pokémon hacks out there (they appear on TheOtherWiki, and [[http://bulbapedia.bulbagarden.net/wiki/Hack_games#Pok.C3.A9mon_Prism Bulbapedia]]) and that's not without good reason. They are by far the most edited Pokémon hacks out there, with only the sprites and Pokémon themselves the same.

''Prism'' works as a "sequel" to ''Brown'', including more features and better graphics. Both games can be linked to each other, which allows the player to exchange Pokémon or battle.

These hacks add two new continents, a new story, improved graphics, all the Pokémon up to Generation IV, Pokémon-only segments (''Prism'' only), and a ''[[CrowningMusicOfAwesome frickin' awesome new soundtrack]]''. (Again, ''Prism'' only)

While ''Brown'' was finished in 2009, ''Prism'' is still in development (a working beta can be downloaded though). There is another sequel, called ''Rijon Adventures'', which will be modified from ''[[VideoGame/PokemonRedAndBlue Pokémon FireRed]]'', and currently places itself 20 years after Brown's events.

If you are curious, there is a LetsPlay [[http://www.youtube.com/watch?v=m-Fe4d0Ua8M here]]. ''Brown'' can be downloaded [[http://www.rijon.com/brown/ here]] and ''Prism'' [[http://www.rijon.com/prism/ here]].

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!!Tropes used in multiple games:
* PunnyName: The ''Rijon'' region.

!!Tropes used in ''Brown'':
* ArtisticLicenseReligion: A miner does the main character a solid by giving him a certain item, but then specifies he's doing so for the good karma ''because he's a Buddhist''. Now, a ''Hindu'' might want good karma, but a Buddhist's main goal is to escape the cycle of karma as a whole, because ''all karma is bad''.
* BonusBoss: The [[spoiler:Pallet Ranger]] at the end of the BonusDungeon, with a team of Level 100 Pokemon. After beating him, the game informs you that you have basically completed everything.
* CallForward: Certain [[spoiler:Pallet Rangers]] cameo in the end stages of the game.
* TheCameo: A couple of significant individuals (including [[spoiler:Giovanni]]), and even a ''place'' - you can visit Azalea Town (Rijon is south of it), but not the rest of Johto since Azalea [[BrokenBridge was sealed off by an earthquake]].
* TheMissingno: While the hacker did his best to keep the actual trope namer from showing up throughout the course of the game, it is still affectionately parodied in one dungeon. An (intentionally) glitched looking Hypno sprite is used in place of the ghosts that appeared in Pokémon Tower. They still terrify your Pokémon, but by [[TheUnintelligible spouting garbled nonsense]] instead of demands for you to leave.
* ObviousRulePatch: New types were added to better balance the game, including the Dark type to counter Psychics as in all subsequent generations, and even a new type that is weak against Normal moves.
* PeninsulaOfPowerLeveling: There is one accessible even before the first Gym, a small single patch of tall grass ''inside a town'' with level 17 to 20 Pokémon (some rare ones like Pikachu, Hitmonlee and Hitmonchan), conveniently in the front of a Pokémon Center.
* TruthInTelevision: Although it's most likely a coincidence, there is, in fact, [[http://en.wikipedia.org/wiki/Castro_Valley,_California a real Castro Valley]].

!!Tropes used in ''Prism'':
* AndNowForSomeoneCompletelyDifferent: As mentioned above, you can walk around the overworld as individual Pokémon in a few areas.
* CaptainErsatz: The Pallet Patrollers are very blatant PowerRangers knockoffs, complete with an 8-bit rendition of the Power Rangers theme as their encounter music. One Patroller wishes they could be called the [[TitleDrop Prism]] Rangers, and laments that [[Franchise/{{Disgaea}} another team]] beat them to the name.
* ContestWinnerCameo: Winners of a contest held on Facebook were given the opportunity to have cameos as AI-controlled trainers.
* DarkerAndEdgier: Characters swear readily, the rival is first encountered while he is [[MoralEventHorizon torturing a Bagon]], the co-leader of the QuirkyMiniBossSquad threatens to kill the player character when their Pokémon aren't around to protect them, and [[ArsonMurderAndJaywalking some characters are just gratuitously obnoxious and nasty]].
* GuestStarPartyMember: A Caterpie joins the player briefly to meet back up with his mother as a shout out to the tutorial stage of the first ''[[VideoGame/PokemonMysteryDungeon Mystery Dungeon]]'' game.
* EstablishingCharacterMoment: The rival forcing a terrified Bagon to fight for its life sets the tone for his character very firmly.
* KnifeNut: This installment's rival, who employs a pocket knife for torturing Pokémon, and is on the search for monsters well suited to cutting and killing people (and Pokémon). [[GameplayAndStorySegregation Yet, most of his early team can learn only blunt attacks as opposed to slashing ones.]]
* LeetLingo: Naljo's professor speaks in this. Fortunately, you don't need to talk to him for long.
* QuirkyMiniBossSquad: The Pallet Patrollers.
* TookALevelInJerkAss: Every other NPC in the Naljo region, due to some unknown apparently supernatural influence spreading throughout the area.
* TotallyRadical: Josiah, leader of the first gym. He lapses out of his 90's lingo when he's explaining what the TM that he gives out does.
* TranslationConvention: A Pokémon's speech is translated if spoken to while a player walks around on the overworld with one of their own Pokémon.
* VirtualPaperDoll: The sprite of the player character and its palette can be modified.