''Digimon Adventure: Anode Tamer'' and ''Digimon Adventure: Cathode Tamer'' are [[OneGameForThePriceOfTwo a pair of counterpart]] games based on the ''Franchise/{{Digimon}}'' franchise, released exclusively on the Bandai UsefulNotes/WonderSwan in 1999. They later received a CompilationRerelease in 2001 for the UsefulNotes/WonderSwan Color, ''Digimon Anode/Cathode Tamer: Veedramon Version'', which received an English translation in Hong Kong.

The games collectively are the first installment in [[Videogame/DigimonWonderSwanSeries a series of]] ''Digimon'' games following the transdimensional adventures of Ryo Akiyama, who would later make several cameo appearances in ''Anime/DigimonAdventure02'' and [[CanonImmigrant become a main character of]] ''Anime/DigimonTamers''. On New Years' Eve 1999, Ryo is playing on his new laptop when he is interrupted by a blackout, and taken into the Digital World by [[Anime/DigimonAdventure Taichi Yagami's Agumon]]. After a brief skirmish with a wild Digimon, Agumon and [[TheObiWan Gennai]] explain that the rise of a powerful new enemy, Millenniummon, has resulted in the imprisonment of all the Chosen Children and the revival of many dangerous enemies, and that it's now up to Ryo to amass an army of Digimon and lead them to victory against Millenniummon.

The games are a simplified take on the TurnBasedStrategy genre, with some of the maintenance elements of the ''Digimon'' virtual pets thrown into the mix. Both the player and the enemy control three {{Mons}} each with limited offensive commands available. The player can charge and use energy from Taichi's borrowed Digivice to capture and "purify" an enemy Digimon and convince it to join Ryo's army.

The games were followed up with ''VideoGame/DigimonAdventure02TagTamers'', continuing Ryo's adventures and tying into the backstory of [[Anime/DigimonAdventure02 Ken Ichijouji]].

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!! Tropes present in ''Digimon Adventure: Anode Tamer'':
* AllThereInTheManual: This game is one of the ''many'' [[NoExportForYou unexported]] manuals about exactly who the hell [[Anime/DigimonTamers that Ryo guy]] is and why he's such a good Tamer.
* ComMons: It's difficult to not end up getting a ''lot'' of Veedramon from Gennai, as they're your reward for beating the first dungeon in the Veedramon Version. It stands out in that you'll end up with a hell of a lot of them even though you can't find and purify them in dungeons. The original Anode/Cathode gave you a Koromon and a Tyrannomon instead, as they generally had good synergy with Agumon and their combination gave you access to some basic Variable moves.
* CompilationRerelease: ''Veedramon Version''.
** DepartmentOfRedundancyDepartment: You have to wonder why they bothered compiling both versions together given they're virtually identical.
* CriticalHit: In this game, a critical hit is indicated by the name of a Digimon's SignatureMove appearing on screen during their melee attack.
* DiscOneNuke: Veedramon in the remake. Highest possible HP in the game and good overall stats.
* EarlyBirdCameo: [[spoiler:Omnimon/Omegamon, called "Garuru Greymon" in the game as the movie wasn't released yet]] is one of the hidden Variable moves obtainable by having a Veedramon in the original.
* GuideDangIt: Two of the hidden post-game dungeons. While an NPC in town mentions that there are four of them after you beat the game, only two of these are easily found. The third one where [[spoiler:all of the bosses can be caught]] is unlocked by having played the game for 20 hours total (though impossible to miss after that), and the final one [[spoiler:with all of the Chosen Children's Digimon]] is unlocked by completing the Digimon Analyzer. This is a very little known fact among Western players of the game, as there are no English sources on the internet that state this.
* HarmfulToMinors: Ryo not only realises by the ''first'' encounter with a Digimon (Kuwagamon, again) that he can get killed easily, he faces every villain alone, and each of them promises to give him a painful, gruesome death.
%%* MightyGlacier: Bar [[{{LightningBruiser}} Gatomon/Tailmon]], most Champion-level Digimon are these.
* NoExportForYou: The games are the only installment of its series to come even vaguely close to averting this - an English translation does exist of ''Veedramon Version'' (and by extension all versions), but was released solely in Hong Kong where there actually was an English-speaking UsefulNotes/WonderSwan market.
* [[OneGameForThePriceOfTwo One Game for the Price of Three]]
** SocializationBonus: Considering how it works like the ''Franchise/{{Pokemon}}'' games, where trading is key to completing the Pokéd- I mean, Digimon Analyzer.
* SecretCharacter: In the original game, players could only obtain a Veedramon through a real-life event, much like [[{{Franchise/Pokemon}} Mew]] and other such legendary Pokémon. Judging from its stats in the remake, they've forgotten (or were unable) to nerf it appropriately, making it a readily available GameBreaker. Their inclusion, and by extension the Veedramon Version in general was likely meant to make the hidden variable moves [[spoiler: Aero Veedramon, Goldramon and Omegamon]] more easily accessible.