Pokemon Evo Yellow GB ROM – Detailed Hack Overview
Game Information
Table Of Contents
About This ROM Hack
Pokémon Evo Yellow is a Game Boy ROM hack that expands Yellow to allow Pikachu evolution, full Pokémon following, and catchable Pokémon from both Kanto and Johto regions (151+ Pokémon). The hack introduces new moves, typings (including Steel, Dark, and Fairy), multi-shiny variants, rideable Pokémon, and extensive gameplay quality-of-life improvements.
It integrates the Red++ base code to allow gender selection, Pokémon genders, and an item/hold system. Players can enjoy a more dynamic and balanced game experience with enhanced trainer AI, diverse move sets, and modifications to TMs, HMs, and evolution mechanics.
Evo Yellow also features new sprites, emotion displays, and Raichu walking after evolution, making it a visually engaging update to the classic Pokémon Yellow.
Story Overview
The game follows the original Pokémon Yellow story but with new twists:
- Pikachu can evolve based on happiness, affecting sprites and in-game interactions.
- Eevee or Meowth can be chosen as starter in respective versions, with Eevee capable of evolving into Sylveon through happiness.
- Pokémon from Kanto and Johto are available, including new evolutions, multi-shiny forms, and balanced leveling.
- The gameplay emphasizes exploration, catching all Pokémon, and training diverse teams while facing updated and stronger trainer teams, including modified Gym Leaders and bosses.
The narrative remains faithful to Yellow’s progression while adding dynamic events, sprite interactions, and custom evolutions to refresh the experience.
Key Features
- Evolve Pikachu into Raichu based on happiness; Raichu updates its sprite and continues to follow the player.
- All 151+ Pokémon available, including Johto species; multiple starter versions: Eevee, Meowth, or Minimalist 151.
- Multi-shiny forms for every Pokémon.
- Playable as Boy or Girl; Pokémon have genders.
- Rideable Pokémon with saddles.
- Enhanced AI: Trainers utilize type effectiveness, heal, and use smarter battle strategies.
- Custom movesets, physical/special split, Hidden Power by type, and added moves like Fairy Wind, Crunch, Steel Claw, Mirror Coat.
- TM, HM, and move changes: includes new TMs, rebalanced moves, and move deletion for HMs.
- Trainers redesigned for better variety and challenge; bosses have more Pokémon to match anime appearances.
- New emotion and evolution sprites for Pokémon, including Raichu and Pikachu.
- LEVELIZER and open-world mode options toggleable in-game.
- Minor gameplay tweaks: Press B to run, Pokémon following the player, decapitalized names, simplified hold item system.
Known Bugs & Issues
- Occasional crashes if viewing many TMs without closing the bag.
- Some new moves may not function perfectly and are considered partially implemented.
- Spikes may only work on “switch on faint” mechanics.
- Minor script and graphical issues due to new sprite sizes and modifications.
- Older IPS patches may be corrupted; UPS patches from GitHub recommended.
- Certain move animations or effects may differ from official versions.
Screenshots
Download Links
Download: MediafireDeveloper Information
Developer / Team: longlostsoldier
Source & References
Official Thread / Website: https://www.pokecommunity.com/showthread.php?t=382380
Frequently Asked Questions
Q: Can Pikachu evolve in this hack?A: Yes. Pikachu evolves into Raichu based on happiness, and Raichu continues to follow the player with updated sprites.
Q: Are all Pokémon catchable?
A: Yes. Players can catch over 151 Pokémon, including both Kanto and Johto species. Certain versions may include Eevee or Meowth starters.
Q: Can I play as a girl?
A: Yes. Gender selection is available, and Pokémon have genders affecting gameplay.
Q: Are there shiny Pokémon?
A: Yes. The hack includes multiple shiny variants for Pokémon.
Q: How are moves and TMs changed?
A: Moves have been rebalanced, physical/special split added, Hidden Power is type-based, and several TMs and HMs have new effects or accessibility improvements.
Q: What is the LEVELIZER/Open-world Mode?
A: LEVELIZER adjusts wild Pokémon levels, and Open-world Mode allows HMs like Cut and Surf to be bypassed for unrestricted exploration.
Q: Is the hack save-compatible with older versions?
A: Not always. Version 2.7 and later may not be compatible with prior saves. UPS patches are recommended.
How to Play
Requirements
- A Game Boy Advance emulator
- A compatible ROM base
- Patch file (IPS / UPS / BPS)
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