Alvaritoterreos

In the Victory Road from Kanto, I found this horde, and the one that is listed as Mahop/Machamp is actually Machop/Machoke, 
both of them in the same floor. (I don't know if the time has to do something with this, but it was at night)

This is guide to all available Pokemon in PokeMMO, their locations and held items. It is fairly comprehensive so I suggest using the CTRL + F function to search for a particular Pokemon or location in game. Credit to Emlee who created the previous encounter guide, it's served us well. I hope that some of you will find this useful, feel free to let me know if something needs adding.
 
*Please read my section on swarms, I need the community's help to complete that information*
Contents
 
1- Kanto & Sevii Islands Pokemon locations
2 - Hoenn Pokemon locations
3 - Altering Cave
4 - Swarms
5 - Held items
 
Notes
 
You will find that region locations have been split into categories to represent how to encounter a specific type of Pokemon. I will go through them below and what they mean.
 

Grass
The Pokemon on this list can be encountered by just walking in the long grass or along the floors of caves/buildings.
 

Gift
These are Pokemon that are given to you as “gifts” by various NPCs, they will come with a gift ribbon and it is not possible to trade or breed them. They will obey you at any level, regardless of how many badges you have.
 

Rock Smash
The Pokemon on this list can be encountered by smashing rocks around the map. To do this you will need HM06 Rock Smash. In Kanto this can be obtained on Kindle Road (One Island) there is a cave on the route, talk to an NPC inside and they will give it to you.  In Hoenn this can be obtained by talking to an NPC in his house in Mauville City, he gives it to you.
 

Old Rod
These are Pokemon that can be encountered by fishing using this rod. In Kanto you obtain the Old Rod in Vermillion City from the Fishing Guru. In Hoenn you can obtain the Old Rod in Dewford Town from the Fisherman walking around outside the Pokemon Centre.
 
 

Good Rod
These are Pokemon that can be encountered by fishing using this rod. In Kanto you obtain the Good Rod in Fuchsia City from the Fishing Guru. In Hoenn you can obtain the Good Rod on Route 118 from a Fisherman NPC.
 

Super Rod
These are Pokemon that can be encountered by fishing using this rod. In Kanto you obtain the Super Rod on Route 12 from the Fishing Guru. In Hoenn you can obtain the Super Rod in Mossdeep City from a Fisherman in one of the NPC houses.
 

Water
The Pokemon on this list can be encountered by surfing on the water around the map. To do this you will need HM03. In Kanto this can be obtained in Fuchsia City by finding the house in the Safari Zone. In Hoenn this can be obtained from Wally’s Father after you defeat the fifth gym leader.
 

NPC Trade
These Pokemon can be obtained through trading with various NPCs, you can only trade with an NPC once. Pokemon obtained through this method will also be considered Gift Pokemon and will not be able to be bred or traded.