Can you find grimer in Pokemon emerald?

You can't find Grimer in Pokemon Emerald directly. Grimer is a Generation 1 Pokemon and therefore does not appear in Pokemon Emerald, which is a Generation 3 game.

However, you can obtain Grimer in Pokemon Emerald by:

* Trading: If you have access to Pokemon from previous generations, you can trade a Grimer from a Generation 1 or 2 game into Pokemon Emerald.

* Using Gameshark or Action Replay: These devices allow you to modify the game data, including adding Pokemon that are not normally available.

Keep in mind that using cheats may void your save file and is not encouraged.