In order to get Grimer, you'll either have to trade one with somebody or breed a Muk.
If you have enough Friend Codes registered on your Nintendo 3DS, you may find a Muk in the Friend Safari located in Kiloude City. Each friend has a Pokémon type associated with him/her so you just need to visit a Poison-type safari but please keep in mind that each safari can only have two to three unchangeable Pokémon.
Well, you have to go into the Fiery Path (it's a cave near lavaridge ) . Then use strength on the movable boulder. You catch grimer there but they are very rare.
fiery path 2% chance
level 38
no
you can't catch muk in emerald but you can catch grimer in the fiery path and get him to level 30 and he will evolve in to muk okay
You can catch one at Fiery Path. It's a common Pokemon, so you won't have trouble finding one.
grimer is in route 212
you talk to the guy and then you catch a grimer and show it to him
U cant catch MUK only grimer + grimer evolve at level 38 !!
You find Grimer in the Fiery Path. They are rare is it may seem that they are not there but they are. Its worth the time getting Grimer then evolving it to Muk, because Muk is probably one of the stronger Poison type Pokemon that are in Emerald!
grimer evoles at level 32 to muk because i have 10
There is no day. To get grimer in Pokemon emerald go fiery path . In there go to the middle of the place . There you use streanth in that area you get grimer Actually you don't need strength to get Grimer. I found mine right when i entered the cave in the first place.
You can catch him in fiery path in Pokemon ruby.
gotta catch em all
by killing someone