You need a pokemon who knows surf and rock climb.
You go out from the west exit of heart home city.
To reach Mt. Coronet from the area we need to access it, you'll have to head to Route 207. Simply go north along Route 207 and then head east using Surf. Once back on dry land, climb up the stairs and grab the Protein before continuing. Then, break out the TM Rock Climb and climb up the nearby rock face to access stairs above, into the next area.
Go forward and bear left. Go up the stairs you encounter and grab the Max Potion from the isolated platform. Then, rejoin the main pathway and head southward. Grab the Escape Rope at the extreme southern end, then use the stairs to reach a higher pathway to your left. Go southward down the thin, dead end pathway to find TM80, and then go north, grabbing the Revive on your left. Then, go north into the next area of the mountain. (If you head outside via the exit at the southwest corner of the area, you can scale down a nearby wall to grab an Iron, but naturally it's not necessary).
In this next small area, go forward and right into yet another area. At this point, head left, forward, and wrap around the linear corridor to another door. You can simply ignore the stairs leading downward on your right, as they lead to a dead end. This will bring you outside, where you'll have to deal with a whole new set of enemies (snow/ice enemies you've already encountered). You'll have lots of options out here—we recommend exploring, looking at the various rocks in the area to find various items (like a Nugget, Escape Rope, and Rare Candy). Ultimately, however, you'll want to "Ziga-zag" around the area, left and right, using Rock Climb, and getting back into Mt. Coronet via the entrance/exit on the west side.
Once back inside the mountain, go forward and use Rock Climb once more to reach the area above. Do battle with Galactic Grunts as you head to the right. You'll find an exit back outside over here. Once you do, simply head north and climb down some stairs to a thin corridor below. Go to the top of the corridor and use Rock Climb to reach the area to your left. Then, simply work your way to the far west part of this area to again go back inside the mountain.
Pokemon Trainers to Fight
Trainer Name Pokemon (w/ LV.) Money EXP
Commander Mars & Commander Jupiter 2x Bronxor (LV. 41) / Golbat (LV. 41) / Skuntank (LV. 46) / Golbat (LV. 42) / Purugly (LV. 45) $7,280 7,566
Galactic Boss Cyrus Honchkrow (LV. 45) / Weavile (LV. 48) / Gyarados (LV. 45) / Crobat (LV. 46) $8,640 7,924
Galactic Grunt (I) Beautify (LV. 40) $1,600 1,380
Galactic Grunt (II) Bronzor (LV. 39) $1,560 601
Galactic Grunt (III) 2x Dustox (LV. 35) / Golbat (LV. 38) $1,400 3,743
Galactic Grunt (IV) Stunky (LV. 38) / Golbat (LV. 38) $1,520 2,034
Galactic Grunt (V) Bronzor (LV. 38) / Glameow (LV. 38) $1,520 1,157
Galactic Grunt (VI) Golbat (LV. 37) / Bronzor (LV. 37) / Glameow (LV. 37) $1,480 2,486
Galactic Grunt (VII) Bronzor (LV. 37) / Golbat (LV. 37) $1,480 1,924
Galactic Grunt & Galactic Grunt Dustox (LV. 38) / Stunky (LV. 38) / Glameow (LV. 38) / Croagunk (LV. 38) $3,040 3,202
From here, it's relatively smooth sailing. Go from linear pathway to linear pathway, doing battle with Galactic Grunts as you go. Make sure to heal and save often just in case you encounter a battle you can't handle (things are getting fairly difficult here!) Saving is especially important since, at the end of the pathway, you'll be thrust into two more boss battles (first you'll have to fight an especially challenging pair of Galactic Grunts).
The first boss battle is against Commanders Mars and Jupiter, both of which will come at you with three Pokemon each. Thankfully, it's a relatively easy battle to predict with strategies because they both have the same two Pokemon (Golbat and Bronzor), leaving their "trump" Pokemon the only difference between the two. Commander Mars has a level forty-five Purugly, while Commander Jupiter has a level forty-six Skuntank. Also thankful in this battle is that your friend will pair off with you, giving you an edge you'll need here. The best news, though? He'll heal your party completely before the next, even more difficult battle.
Save before going to fight Cyrus again. Understand, also, that while your friend helped you in the last battle, this one will have to be fought all on your own. Cyrus has four powerful Pokemon—a level forty-five Honchkrow, a level forty-eight Weavile, a level forty-five Gyarados, and a level forty-six Crobat. Come at him hard and be ready to heal often—he is fairly versatile in his types and has extreme power. This will, no doubt, be the hardest battle you've fought in the game so far. But don't worry, because hereafter, it gets much more difficult.
Following the battle (and Cyrus' pesky use of Super Potions and Full Restores in battle), you'll ultimately be rewarded with an all-new Pokemon, extremely powerful indeed! This is where the version of the game, whether Pearl or Diamond, is important. We here at IGN Guides are playing with a Pearl copy and hence got Palkia, but those who are playing Diamond will get a Dialga instead. Either way, you're going to need to capture the foe in battle, and you'll only have one chance. Our recommendation? Don't bother fighting the creature. Instead, used the earlier-acquired Master Ball and use it at the outset of battle to capture the ultra-rare Pokemon right away! Before leaving, make sure to go back north on the top of the mountain to get an item, also version specific. For us, it was a Lustrous Orb!
You go out from the west exit of heart home city.
To reach Mt. Coronet from the area we need to access it, you'll have to head to Route 207. Simply go north along Route 207 and then head east using Surf. Once back on dry land, climb up the stairs and grab the Protein before continuing. Then, break out the TM Rock Climb and climb up the nearby rock face to access stairs above, into the next area.
Go forward and bear left. Go up the stairs you encounter and grab the Max Potion from the isolated platform. Then, rejoin the main pathway and head southward. Grab the Escape Rope at the extreme southern end, then use the stairs to reach a higher pathway to your left. Go southward down the thin, dead end pathway to find TM80, and then go north, grabbing the Revive on your left. Then, go north into the next area of the mountain. (If you head outside via the exit at the southwest corner of the area, you can scale down a nearby wall to grab an Iron, but naturally it's not necessary).
In this next small area, go forward and right into yet another area. At this point, head left, forward, and wrap around the linear corridor to another door. You can simply ignore the stairs leading downward on your right, as they lead to a dead end. This will bring you outside, where you'll have to deal with a whole new set of enemies (snow/ice enemies you've already encountered). You'll have lots of options out here—we recommend exploring, looking at the various rocks in the area to find various items (like a Nugget, Escape Rope, and Rare Candy). Ultimately, however, you'll want to "Ziga-zag" around the area, left and right, using Rock Climb, and getting back into Mt. Coronet via the entrance/exit on the west side.
Once back inside the mountain, go forward and use Rock Climb once more to reach the area above. Do battle with Galactic Grunts as you head to the right. You'll find an exit back outside over here. Once you do, simply head north and climb down some stairs to a thin corridor below. Go to the top of the corridor and use Rock Climb to reach the area to your left. Then, simply work your way to the far west part of this area to again go back inside the mountain.
Pokemon Trainers to Fight
Trainer Name Pokemon (w/ LV.) Money EXP
Commander Mars & Commander Jupiter 2x Bronxor (LV. 41) / Golbat (LV. 41) / Skuntank (LV. 46) / Golbat (LV. 42) / Purugly (LV. 45) $7,280 7,566
Galactic Boss Cyrus Honchkrow (LV. 45) / Weavile (LV. 48) / Gyarados (LV. 45) / Crobat (LV. 46) $8,640 7,924
Galactic Grunt (I) Beautify (LV. 40) $1,600 1,380
Galactic Grunt (II) Bronzor (LV. 39) $1,560 601
Galactic Grunt (III) 2x Dustox (LV. 35) / Golbat (LV. 38) $1,400 3,743
Galactic Grunt (IV) Stunky (LV. 38) / Golbat (LV. 38) $1,520 2,034
Galactic Grunt (V) Bronzor (LV. 38) / Glameow (LV. 38) $1,520 1,157
Galactic Grunt (VI) Golbat (LV. 37) / Bronzor (LV. 37) / Glameow (LV. 37) $1,480 2,486
Galactic Grunt (VII) Bronzor (LV. 37) / Golbat (LV. 37) $1,480 1,924
Galactic Grunt & Galactic Grunt Dustox (LV. 38) / Stunky (LV. 38) / Glameow (LV. 38) / Croagunk (LV. 38) $3,040 3,202
From here, it's relatively smooth sailing. Go from linear pathway to linear pathway, doing battle with Galactic Grunts as you go. Make sure to heal and save often just in case you encounter a battle you can't handle (things are getting fairly difficult here!) Saving is especially important since, at the end of the pathway, you'll be thrust into two more boss battles (first you'll have to fight an especially challenging pair of Galactic Grunts).
The first boss battle is against Commanders Mars and Jupiter, both of which will come at you with three Pokemon each. Thankfully, it's a relatively easy battle to predict with strategies because they both have the same two Pokemon (Golbat and Bronzor), leaving their "trump" Pokemon the only difference between the two. Commander Mars has a level forty-five Purugly, while Commander Jupiter has a level forty-six Skuntank. Also thankful in this battle is that your friend will pair off with you, giving you an edge you'll need here. The best news, though? He'll heal your party completely before the next, even more difficult battle.
Save before going to fight Cyrus again. Understand, also, that while your friend helped you in the last battle, this one will have to be fought all on your own. Cyrus has four powerful Pokemon—a level forty-five Honchkrow, a level forty-eight Weavile, a level forty-five Gyarados, and a level forty-six Crobat. Come at him hard and be ready to heal often—he is fairly versatile in his types and has extreme power. This will, no doubt, be the hardest battle you've fought in the game so far. But don't worry, because hereafter, it gets much more difficult.
Following the battle (and Cyrus' pesky use of Super Potions and Full Restores in battle), you'll ultimately be rewarded with an all-new Pokemon, extremely powerful indeed! This is where the version of the game, whether Pearl or Diamond, is important. We here at IGN Guides are playing with a Pearl copy and hence got Palkia, but those who are playing Diamond will get a Dialga instead. Either way, you're going to need to capture the foe in battle, and you'll only have one chance. Our recommendation? Don't bother fighting the creature. Instead, used the earlier-acquired Master Ball and use it at the outset of battle to capture the ultra-rare Pokemon right away! Before leaving, make sure to go back north on the top of the mountain to get an item, also version specific. For us, it was a Lustrous Orb!
