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GBA · Pokémon FireRed · v1.3.1 · by 999999999 (Hackdex handle)

Oops All Eevees

42areas371Pokémon51bosses239trainers
What makes it different

Kanto, but every Pokémon is Eevee: 324 original type-combination Eeveelutions replace the entire dex, each with its own stats, abilities and moves.

More about the game

Oops All Eevees rebuilds Pokémon FireRed's Kanto with a single joke taken all the way: nothing but Eevee and its evolutions exist. Every one of the 18 types has its own pure-type Eeveelution (Flareon, Vaporeon and the rest, plus ten new ones the games never gave a type of its own — Aerieon for Flying, Artheon for Bug, Brickeon for Rock, Champeon for Fighting, Drakeon for Dragon, Duneon for Ground, Fanteon for Ghost, Ferreon for Steel, Neuteon for Normal, Vireon for Poison), and each of those can be evolved a second time into any of the other 17 types by using that type's own boosting item — the same trick as an evolution stone — giving 306 more two-type fusions on top. Kanto's map, gyms and story beats are otherwise FireRed's own, but every trainer's team is new, movesets are expanded so a type's Eeveelution always has attacks to match it, and the rival's team branches by which of the three starter-flavoured Eevees is picked at the start. A long postgame follows the Elite Four: rematches, joke bosses standing in for the game's own cast, and a final "Deadlord" gauntlet of retyped gym leaders back to back.

What's different, point by point

  • 324 Eeveelutions covering every type and two-type combination, in place of the entire Pokédex
  • Every trainer in the game rebuilt with new Eeveelution teams, movesets expanded to match each type
  • The rival's team branches by which starter-flavoured Eevee is picked at the very start
  • Type-boosting items (Charcoal, Mystic Water and the rest) double as evolution stones for a second evolution
  • Reusable TMs, Rare Candies available from the start, and a long postgame of rematches and joke boss fights
  • A closing “Deadlord” gauntlet: eight retyped gym-leader rebuilds fought back to back with no healing between them
Everything it changes →
Made by

999999999 (Hackdex handle)

This guide is built from 999999999 (Hackdex handle)'s own documentation. The game, the ideas and the work are theirs — the site just makes the numbers searchable. Play it from the official page, and send them the feedback and the thanks.

What this guide covers

Every guide here is built from the game's own documentation. Where a ROM hack changed something but never published the numbers, this says so rather than quietly filling the gap with the original game's — which would be worse than leaving it out.

SectionSource
Wild Pokémon by areaFrom the game itselfEvery route, cave and town's land, surf and rod tables from the Encounter Tables tab, across 42 areas.
Encounter ratesFrom the game itselfThe sheet's own per-slot percentage for every table.
Wild levelsFrom the game itselfThe sheet's own min–max level range for every table.
Stats, abilities and movesetsFrom the game itselfAll 324 Eeveelutions plus Eevee itself: stats, types, abilities, full level-up learnset and evolution method.
TM and HM compatibilityFrom the game itself257 TM/tutor slots with per-species compatibility, read from the Learnsets tab's own compatibility grid.
Where TMs are foundFrom the game itselfTM01–50 use FireRed's own locations, which the documentation says are unchanged (see the notes above); TM51 onward has no location in the documentation, only compatibility.
Trainer and boss teamsFrom the game itself239 fights from Major Battles and the nine trainer-area tabs, covering every gym leader, the rival across all three starters, the Elite Four, the Champion and the postgame including the Deadlord gauntlet.

Credits

  • Oops All Eevees — design, writing, hacking and documentation: 999999999 (Hackdex handle)
  • CFRU and HexManiacAdvance, the tools this hack was built with: the CFRU team and the HexManiacAdvance project
  • Sprites via PokéAPI; base move and TM data from PokéAPI and Bulbapedia.

Reading the tables

SourceEvery number on this guide comes from the creator's own 18-tab documentation workbook, the one file in their Drive folder besides the patch itself and a showcase video.

TypesThe workbook never labels a species' type in a column; it names each Eeveelution by a two-part prefix+suffix convention (e.g. "Aer-" + "-drakeon" for Flying/Dragon) with no legend written out anywhere. Every one of the 18 roots is still provable from the sheet itself: each root's own "pure" row (where the prefix and suffix match, e.g. Bri+Bri) carries a design note on that exact row stating the type in plain words ("Rock types are slow, tanky..."), and eight of the eighteen are additionally provable because that root's pure name is an official Eeveelution (Flareon is Fire, Vaporeon is Water, and so on). Nothing here is inferred from a moveset or STAB pattern.

Roster324 species total: 18 single-type Eeveelutions (Eevee's first evolution) and 306 two-type fusions (a single-type Eeveelution evolved again with a second type's boosting item). Eevee itself isn't re-tabled in the documentation — only its evolutions get a stats row — so its stats and ability here are FireRed's own official Eevee, unchanged as far as the sheet says. 18 species also have a mechanically-identical "2" duplicate (Flareon2 and so on); the workbook says this exists only so the engine's 10-evolutions-per-species limit doesn't block a single type from reaching all 17 other type fusions.

EvolutionsA single-type Eeveelution evolves from Eevee using that type's own boosting item (Charcoal for Fire, Mystic Water for Water, and the rest from the Items page); a two-type fusion evolves from its first type's single Eeveelution using its second type's item the same way — both read directly off the Items tab's own item list plus the two places the workbook explains the mechanic (Major Battles and Surge's trainer notes).

LearnsetsLevel-up movesets for Eevee and the 18 single-type Eeveelutions are the workbook's own Learnsets tab. A two-type fusion's learnset and TM/tutor compatibility are its first type's single Eeveelution's own, unchanged — the workbook states outright that a fusion simply combines its two components' movesets, but TMs only copy the first component.

TMsThe Learnsets tab also holds a 257-slot TM/tutor compatibility grid. The first 50 slots are FireRed's own TM01–50 almost exactly — 48 of 50 carry the identical move in the identical slot — and the Items tab says everything it doesn't list is unchanged from FireRed, so this guide uses FireRed's own TM locations for those 50, with this game's own move in each; the other two (TM03 is Bubble Beam here, not Water Pulse; TM49 is Trick, not Snatch) are shown on the moves page like any other change. TM51 onward is this hack's own expansion of the reusable-TM/tutor system with no FireRed equivalent, so those have compatibility but no published location.

EncountersThe Encounter Tables tab lists wild land, surf and rod tables per route with a percentage and level range per slot; a few areas split their table into a second block for a second floor or sub-area, folded into the same area's table here since the sheet doesn't name which floor each block belongs to. A handful of slots give a type abbreviation (e.g. "Wat", "Psy") instead of a full species name; those resolve to that type's single Eeveelution, since the type legend above makes that an exact match, not a guess.

TrainersMajor Battles covers the rival (see the note above), the eight Gym Leaders, Giovanni's three fights, the Elite Four, the Champion and a long postgame (joke bosses, then an eight-fight "Deadlord" gauntlet of retyped gym-leader rebuilds). The eight "[Gym] Split Trainers" tabs plus a League tab hold every other trainer standing on the way to that gym — despite the name, only the rival's own fights branch by starter; every other trainer here has one fixed team.

Battle LocationsKanto's map is FireRed's own (the Items tab says so, and nothing in the documentation renames a route or building), so a fight's area is FireRed's own place name for it, except where the workbook's own trainer notes name a different spot outright (Rival 4 at Pokémon Tower, Rival 5 and one Giovanni fight at Silph Co., and several postgame joke fights placed by the Items tab's own item-guard notes).

ItemsThe Items tab lists only what's different from base FireRed — new held-item pickups (mostly the type-boosting evolution items), the in-game shops, and a set of joke "Pride Scarf" held items guarded by postgame trainers. Everything else is stated to be unchanged from FireRed.

MovesMove stats are FireRed's own except the 9 the workbook's MOVE CHANGES tab lists by name (Poison Sting, Fairy Wind, Drill Peck, Blaze Kick, Power-Up Punch, Rock Smash, Cut, Fly, Strength), shown with the change on the moves page.

ProgressKanto's story order, badge gates and HM/rod locations are FireRed's own — nothing in the documentation says any of that moved — adjusted only for the two things this hack does document: Cut is now Flying-type and Strength is now Rock-type (a move change, not a location change).