The user is discussing their experience playing Pokemon Diamond and Pearl. They start by choosing a Turtwig, a Starly, and a Bidoof. They then meet Looker, an investigator, and his team, Team Galactic, who are trying to create a new universe. The protagonist learns about Team Galactic's plan and decides to stop them. They journey across various cities and gyms, battling against Team Galactic's members and gym leaders.
They save the spirits of the lakes, which are being drained by Team Galactic. They reach the top of Mt. Coronet, where they confront Cyrus, the leader of Team Galactic. Despite their efforts, Cyrus manages to create a new universe. However, the spirits of the lakes appear and reject Cyrus's control, causing him to flee.
The protagonist then battles against the Elite Four to become the Sinnoh League Champion, accomplishing their life's goal by the age of 10.
1. The protagonist starts their Pokemon journey by choosing a turtle as their first Pokemon.
2. They encounter a character named Barry, who suggests catching a Gyarados.
3. They visit Lake Verity, but find no red Gyarados.
4. They accidentally leave a suitcase behind and start their journey.
5. They rob a professor and choose between three Pokemon: a turtle, a penguin, or a fire monkey.
6. They are caught by the police and are forced to return home.
7. They return to the professor's lab, who gives them Pokeballs and a Pokedex, asking them to collect data on all Pokemon.
8. They meet an investigator named Looker, who directs them to the Poke Preschool to learn more about Pokemon.
9. They meet three bowl-cut dudes trying to rob the professor.
10. They visit an elderly couple who give them Jirachi and Mew for free if they have purchased the last two Pokemon games.
11. The protagonist encounters Team Galactic, who are trying to create a new universe.
12. They enter Eterna Forest and meet a leader of Team Galactic, who they battle and defeat.
13. They are given a compact disc that they can use to teach their Pokemon how to cut things.
14. They can dig a hole in the middle of a city to reach Sinnoh's underground, where they can find rare Pokemon.
15. They battle Gardenia, the gym leader of Eterna City, and defeat her.
16. They meet the assistant and are given a bicycle.
17. They enter a cave where they meet a blue-haired guy who talks about the downfall of humanity.
18. They move to Hearthome City, where they find their mother in the city's contest hall.
19. They travel to Veilstone City, where they encounter the assistant loitering around town.
20. They enter a cave and meet a guy monologuing about the downfall of humanity.
21. They move to Hearthome City, where they meet their mother at the city's contest hall.
22. They travel to Veilstone City, where they encounter the assistant.
23. They battle the gym leader Maylene and likely lose due to her Lucario being broken.
24. They battle a few Galactic Grunts and get back their Pokedex.
25. They travel to Pastoria town to battle their gym leader.
26. They chase a Galactic Grunt towards a plot cave and find cave paintings.
27. They meet Cynthia's Grandmother, who tells a story about three spirits.
28. They meet Cyrus, who reveals his plan to create a new universe.
29. They rush to Lake Verity, but find that the lake spirit has already been transported to HQ.
30. They travel to Lake Acuity, but find that the lake spirit has already been transported to HQ.
31. They reach Veilstone's Galactic HQ, where they meet Cyrus, who reveals his plan to create a new universe.
32. They are given a Master Ball and free the dried up lake spirits.
33. They reach the top of Mt Coronet, where Cyrus uses the Red Shackle to imprison Dialga or Palkia.
34. They battle the commanders in a double battle, where Barry leads with a Munchlax.
35. They defeat Cyrus, but it's too late and Dialga has finished creating the new universe.
36. They head to Sunnyshore city, where they battle Volkner and obtain their 8th and final gym badge.
37. They meet Jasmine from Pokemon Gold and Silver and HeartGold and SoulSilver, who gives them the HM for Waterfall.
38. They enter the league doors and challenge the Sinnoh Elite Four to reach the Sinnoh Champion Cynthia.
39. After multiple attempts, they defeat Cynthia and become the Sinnoh League Champion.