Pokemon HeartGold and SoulSilver Walkthrough
Violet CityLet's first explore Violet City a bit. In the house at the southwest corner of the city is a kid who's willing to trade his Onix for a Bellsprout. Now you need to visit Sprout Tower, which is at the northern end of the city.
Sprout Tower
Sprout Tower is an interesting tower featuring a swaying beam.
Take the ladder to the second level, where you'll fight a Sage. Move down
a level by taking the ladder on the top-right corner, pick up the Parlyz Heal,
go left, fight another Sage, and head up the ladder. Pick up the X Accuracy
and follow the path. You'll fight another Sage. Head up the ladder again.
After picking up a Potion and fighting three more Sages, you'll have to
fight the final Sage.
Rival had just finished battling him and leaves. Before fighting Elder Li, pick up the Escape Rope on the right. As expected, Elder Li is stronger than the other Sages, but that shouldn't be a problem for you. After beating him, he'll give you TM 70 - Flash. Now it's time to hit the gym!
Violet Gym
The Violet City gym specializes in Flying type Pokemon.
Enter the gym, step onto the platform, and the lift will take you very high up.
Defeat the two trainers (or, optionally, avoid them by taking the translucent
paths) and you'll be able to battle Falkner, the gym leader.
Falkner uses a lv. 9 Pidgey and a lv. 13 Pidgeotto. The Pidgeotto may be a little tough, since it'll keep using Roost to recover. After you defeat Falkner, he'll award you your first badge: the Zephyr Badge. This badge allows all Pokemon up to lv. 20 to obey you and allows you to use Rock Smash outside of battle. In addition, he'll give you TM 51 - Roost.
When you leave the gym, Professor Elm calls and asks you to meet his assistant at the Pokemon Mart, which is right next to the gym. His assistant is the closest person to the entrance inside the Pokemon Mart. Talk to him, and he'll give you an Egg, which will eventually hatch as a Togepi after about 2,500 steps.
When you leave the Pokemon Mart, a Kimono Girl will approach you, tell you to take good care of the Egg you just obtained, and leave. Afterwards, leave the city by heading northwest onto Route 32.
Route 32
Talk to the fat guy and he'll give you HM 06 - Rock Smash. You won't be
able to go any further due to a dancing Sudowoodo blocking the path. Instead, go
back to Violet City and head south to get onto the other side of
Route 32. Before leaving Violet City, pick up a Ylw Apricorn.
Head south. A bald guy will give you Miracle Seed. You'll have many opportunities to battle other trainers and level up your Pokemon on Route 32. Along the way, you'll be able to pick up a Repel, a Great Ball, and TM 09 - Bullet Seed. Since this is a rather long route, there's a Pokemon Center halfway through where you can heal your Pokemon before you go into the cave ahead. Before entering the cave, smash the rock to pick up a Shell Bell.
Union Cave
Head straight west and pick up the X Attack. Head north and down the steps.
Go west, pick up the hidden X Speed on the first rock you see, and pick up
TM 39 - Rock Tomb at the dead end. Go north to pick up a X Defend.
Now head back up the steps. Head south, following the windy path and battling
the trainers. Along the way, you'll be able to pick up a Great Ball, a
Potion, a hidden Parlyz Heal in a tall rock past the Firebreather,
and an Awakening before exiting the cave. On the other side is Route 33.
Route 33
It's raining on Route 33! Pick up a Pnk Apricorn and a Blk Apricorn. Head west just a little and you'll be in Azalea Town.