Pokémon Ruby and Sapphire/Route 120

The first thing to do here is to walk past the trainers and tall grass to the wooden bridge, where Steven is. He will use his Devon Scope to reveal a wild Kecleon which immediately attacks. This is a good time to catch one if you haven't already, but don't worry if you don't catch it - they can be found in tall grass on this route (though they are admittedly rare). After the battle ends, he gives the Devon Scope, which will allow you to scare off the Kecleon blocking access to ../Fortree City/'s Gym. Upon returning to the area, if you keep to the north, you'll find two familiar faces.

Items

 * Rare Candy - hidden in the dead-end path north of Parasol Lady Clarissa (requires Cut)
 * Revive - hidden in the clearing in the northernmost patch of long grass
 * Devon Scope - obtained on the north bridge, after battling Kecleon
 * Revive - in the middle of the puddle area
 * Nest Ball - north edge of the northern lake (requires Devon Scope)
 * Aspear Berry - soft soil patch, northeast of the puddle-laden area (requires Cut)
 * Zinc - hidden in the northwest corner of the grass maze
 * Nugget - southwest corner of the grass maze
 * Pecha Berry - southwestern-most soft soil patch
 * Nanab Berry - soft soil patch near the southwest pond
 * Pinap Berry - soft soil patch near the southwest pond
 * Wepear Berry - soft soil patch near the southwest pond
 * Razz Berry - soft soil patch near the southwest pond
 * Full Heal - south side of the southwest pond (requires Surf)
 * Rare Candy - south side of the southwest pond (hidden, requires Surf)
 * Hyper Potion - north side of the southern-most patch of long grass

Trainers
Head back across the bridge where you recently saw Steven, and continue on. As you move down, you'll encounter more trainers.

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In Emerald, to the right of Lionel and Angelica, you meet two more trainers looking for a 2 on 2 battle.

After Angelica in Ruby and Sapphire, or the 2 on 2 battle in Emerald, you meet more trainers.

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Move all the way to the right and cut down the tree here to gain access to an Aspear Berry Grove. Pick them, then go back to the path and head south.

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