Here are some requirements that it needs.
- It needs to be free. I have no money. Well I do, but I'm not allowed to just buy things.
- It needs to support pixel art/work. It's a Pokémon game. Pokémon uses pixel art.
- It needs to be a good interface to work on/up-to-date. Think RPGMaker. But I can't use that. I have no money.