Evolution Items
The following items can be found in the game. For more information on obtaining a specific item, refer to the respective walkthrough pages.
| Item Name | Description | Location | Buy | Sell |
| Fire Stone | Use to evolve Growlithe, Vulpix and Eevee | Celadon Dept. Store | 2100 | 1050 |
| Leaf Stone | Used to evolve Gloom, Weepinbell and Exeggcute | Celadon Dept. Store | 2100 | 1050 |
| Moon Stone | Used to evolve Nidorino, Nidorina, Clefairy and Jigglypuff | Mt. Moon, Rocket Hideout, Route 2, Pokemon Mansion | – | – |
| Rare Candy | Instant level gain | Various | – | 2400 |
| Thunder Stone | Used to evolve Pikachu and Eevee | Celadon Dept. Store | 2100 | 1050 |
| Water Stone | Used to evolve Poliwhirl, Shellder, Staryu and Eeve | Celadon Dept. Store | 2100 | 1050 |
