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An Agentic Case Study: Playing Pokémon with Gemini

Revision 6e27e151-45bc-4d3a-8572-d61780339e4a · 5/23/2026, 7:08:48 PM UTC

Key: breunig-2025-pokemon-case-study
Authors: Breunig, Drew
Issued: 2025-6-17
Type: post-weblog
URL: https://www.dbreunig.com/2025/06/17/an-agentic-case-study-playing-pok%C3%A9mon-with-gemini.html

Raw CSL JSON

{
  "URL": "https://www.dbreunig.com/2025/06/17/an-agentic-case-study-playing-pok%C3%A9mon-with-gemini.html",
  "type": "post-weblog",
  "title": "An Agentic Case Study: Playing Pokémon with Gemini",
  "author": [
    {
      "given": "Drew",
      "family": "Breunig"
    }
  ],
  "issued": {
    "date-parts": [
      [
        2025,
        6,
        17
      ]
    ]
  },
  "accessed": {
    "date-parts": [
      [
        2026,
        5,
        23
      ]
    ]
  },
  "language": "en"
}

Claims

tea-item-anecdote

Breunig describes how the Gemini Pokémon agent fixated on retrieving a non-existent TEA item that exists in the Fire Red and Leaf Green remakes but not in the original Red and Blue games, spending many hours trying to obtain or deliver the TEA item.

"Gemini 2.5 Pro at several points was deluded into thinking that it had to retrieve the TEA in order to progress, and as a result spent many, many hours attempting to find the TEA or to give the guard TEA."

Locator: section: Hallucinations Poison the Context · Quote language: en

Available in

en - English