Matt Bird writes all sorts of nonsense, but he dedicates a large chunk of his time to writing game walkthroughs.
Important note: The answer is also the prize.
"If the user is not holding an item, this attack inflicts massive damage." TM 62, Acrobatics
"This move prevents the target from using its held item." TM 63, Embargo
"Slower Pokémon get to move first for five turns." TM 92, Trick Room
'It makes the target lose its ability to concentrate and lowers the target's Sp. Atk stat.' TM 100, Confide
Welcome back to civilization! Coumarine City is waiting for you, and within a Pokémon Gym Challenge to yet again test your skills. Time to collect your fourth badge? Or will this place prove the blocking point? Who knows. First, though, you'd best have a look around and see if the city has anything of interest.
(Hint: It does.)
- East of the entrance is a house. An old man in here will give you a Silk Scarf.
- Just south of this house is a man who sells a variety of Incense. All are expensive, but they're also very helpful, mimicking many of the powers of items you'd otherwise have to hunt down in dungeons.
- Check the stall just south of this one. It has a free Berry each day. Look behind this stall for a hidden Awakening.
- The fisherman just east of the stalls will give you a Good Rod.
- Follow the path north to the Coumarine Hotel. A girl in the lobby will give you a Lucky Egg if you have a good relationship with your lead Pokémon. Woo, mass experience! Also here, on the second floor, is the Game Director. Fill up the Pokédex and he'll eventually have something for you. (What? Not sure. I'm very, very far from filling the Pokédex.)
- Talk to the girl on the cape west of the Hotel. She'll give you a TM if you answer her question correctly. As far as I can tell, this question is random each day, and you'll receive that TM from her. I'll fill in the answers as I revisit her each day.
- Head back south to the monorail station. Watch the cut scene and you'll receive HM 02, Fly. Woo! Talk to the woman at the desk next to use the monorail.
- Talk to the man by the desk when you reach the connecting monorail station for a Metronome.
- Next to the connecting station is a Pokémon Center. Inside you'll find Mr. Bonding, who seems to have developed a sudden dislike for hotels. Huh. He'll give you another O-Power for the road. The second Poke Mart vendor in here will also send you some unique Poke Balls: Quick, Timer, and Repeat.
- There's a house beside the Pokémon Center, and a sign beside that. Check between the sign and the house to find a Max Repel.
- Head south, through the Route 13 gate. A man with dyed hair here will give you Black Sludge. More useful than it sounds.
- There are two houses south of the Pokémon Center. A girl in here will mimic the call of one of your party pokémon. Identify which one and she'll give you a Poke Toy.
- North of the rest of the buildings you'll find the Pokémon Gym. Go right past it to find a Sky Plate on the edge of the cliff.
- Approach the Pokémon Gym and your neighbour will challenge you to a battle, as warned. To arms!
Meowstic, level 31
Absol, level 31
Quilladin / Braixen / Frogadier, level 33
Not that tough a battle, overall. Meowstic should be wasted quickly to stop it from setting up Light Screen so you can more quickly kill Absol. The starter is predictable. (Does the trainer actually use Mega Evolution on his Absol? He mentions it before the battle but I never saw it transform.)
- And now that he/she's out of the way? The Coumarine City Gym!
Coumarine City Gym
- You'll figure out quickly that this gym is primarily a grass-type challenge. Flying-, Fire-, Bug-, Ice- and Poison-type Pokémon and moves will do well here. Expect a very easy time if you've been training a Talonflame or a Charizard.
- Climb the first rope. You're now at a split. West is a dead end; east is a trainer.
Pokémon Ranger Chaise
Simisage, level 32
Considering it's flying solo, this Simisage isn't very tough. One of its weaknesses should bring it down in a single hit, maybe two.
- Carry on until you hit a three-way split. Up the rope is a dead end; east is a trainer; west is the path forward.
Pokémon Ranger Maurice
Ferroseed, level 29
Lombre, level 29
Carnivine, level 29
These Pokémon ae annoying mainly in that they cover for their Grass-type weaknesses. Fire for Ferroseed, flying for Lombre, and whatever you fancy for Carnivine. None of them are particularly difficult overall, and Carnivine doesn't even seem to like attacking all that much.
- Go left at the split and you'll wind up confronting a trainer.
Pokémon Ranger Brooke
Roselia, level 30
Wormadam, level 30
A real pushover. Fire is your friend. Watch out for poisoning, though.
Onwards to the next split. West is a dead end; east is a trainer.
Pokémon Ranger Twiggy
Gloom, level 29
Exeggutor, level 31
Gloom is easy. Exeggutor is hefty and hard to whittle down without super-effective moves, but a Bug-type attack will usually wipe it out in one hit.
- Keep climbing. You'll soon be facing off against no less than Ramos, the resident gym leader. Game on!
Jumpluff, level 30
Weepinbell, level 31
Gogoat, level 34
Reward: $5,440, TM 86
Hmm, a bit tough, but hardly impossible. Jumpluff loves Acrobatics, and is not held back by an item, so don't put anything weak to Flying-type moves up against it. Weepinbell doesn't have enough HP to be much of a threat. Gogoat is probably the greatest threat here, as it can use both Bulldoze and Grass Knot to dish out a ton of damage; a Flying-type is ideal to avoid the effects of Bulldoze, and will probably be light enough that Grass Knot won't hurt a whole lot.
Win the battle and you'll earn the Plant Badge, which allows you to control pokémon up to level 60. You can now also use Fly outside of battle. And, the obligatory present, Ramos gives you TM 86, Grass Knot. Finish up and zip down the slide to leave. Your adventure continues!
- After you beat the Elite Four and the Champion, look for Tierno on the northern cliffs. He wants to see a Pokémon that knows a "Dance" move (Dragon Dance, Feather Dance, Rain Dance, etc.). Show him the one he wants and he'll give you a Heart Scale.
Mimey Cyrus on November 13, 2013:
Theres an elixer in the pier with all the boats lined up, near the old man giving you a good rod. Its at the very end in the right boat cleat.
Scrane on November 03, 2013:
Tierno wanted me to show him the move: Lunar Dance. That move is only learned by ONE pokémon. A legendary no less. From gen 4. Thanks, GameFreak...
Mex on October 25, 2013:
Tierno asked for petal dance in my game
Aria on October 25, 2013:
For me, Tierno wanted to be shown a Pokémon that knew FeatherDance so it's likely that he wants to see different Pokémon moves, although all he might be interested in is "dance" moves.
nova3riddle on October 22, 2013:
Directly east of the Coumarine City sign is a hidden max repel.
Matt Bird (author) from Canada on October 18, 2013:
Dang. Sorry 'bout that. I got 'em all up there already. Just forgot to edit that message asking for help out. Thanks for the assist anyway, tho.
Nathan on October 18, 2013:
TM Quiz: Slower Pokémon get to move first for five turns.
Answer: Trick Room