Tinkmaster and Smearguru can accompany Ditto underwater after the version-2.0 update and their relevant conversations. This lets you use Tinkmaster's construction help and Smearguru's painting in submerged projects. Ditto must already know Dive; owning the Expansion Pass is only necessary for entering Bubbly Basin itself.
Speak to each helper before diving
- Update the game and learn Dive from Manaphy. Visit Tinkmaster and Smearguru separately and check their request bubbles, including Smearguru's wish for underwater inspiration.
- Complete the dialogue in which Ditto makes underwater travel possible with a bubble. Invite the character to follow you afterward; unlocking one helper does not automatically complete the other's conversation.
- Enter the water and check that the helper follows below the surface. Bring Tinkmaster to a compatible construction kit or Smearguru to a paintable underwater building, with the materials or paint the job requires.
If the conversation does not appear
Check unfinished character requests first. If Tinkmaster has moved, return together to Sparkling Skylands and check the Center-tour and home requests. Likewise, revisit Smearguru's earlier requests in Bleak Beach. These checks help distinguish an outstanding errand from an underwater movement problem.
Set up a local home for repeated work
For long underwater projects, assign a suitable home nearby instead of fetching the same helper for every job. Being able to follow you underwater does not automatically assign a residence. Choose other builders that can enter water too; this dialogue does not grant diving to every Pokémon.
