you find it on route 110
swallot
Gulpin can be found on Route 110, but it's rare.
level 26
Mystery Zone
To catch the Pokemon GULPIN, you need to fy (or walk!) to the Great Marsh. Then in area 6, there is a patch of swamp that measures 4 by 4 tiles (the tiles are located in a corner of trees, near the "Area 6" sign.) Walk around these tiles until you find GULPIN! P.S:I have 16 GULPIN's!!!
Great Marsh (Rare)
In Pokémon Ruby, Gulpin evolves at Level 26 and it evolves into a Swalot.
Level 64
trade or migrate or action replay
level 36 hola dat is zee anzer rleel
Yes, you can. Evolve your Gulpin at Lv. 26 and you'll have yourself a Swalot.
With a regular, old-fashioned poke ball.