What to know
- You start the side job by speaking to Millie Curd during a specific mission.
- The objective is to purchase a Pack of Deflated Balloons from the Hustler’s Shop.
- The task is short and requires only a small coin investment.
- Completing it rewards you with a Baseball Card collectible.
“Oh Yes… They Float” is one of the quicker and more straightforward side jobs in Mouse P.I. For Hire, but it’s easy to miss if you don’t know when and where to start. You’ll be dealing with a simple fetch-style objective, but timing and awareness matter since it’s tied to a specific mission window.
Below is everything you need to complete Oh Yes… They Float side job in Mouse: PI For Hire efficiently:
| Category | Details |
|---|---|
| Side Job Name | Oh Yes… They Float |
| Quest Giver | Millie Curd |
| Start Condition | During “It All Points Here, Right?” mission |
| Objective | Buy Pack of Deflated Balloons |
| Cost | 25 Coins |
| Location | Hustler’s Shop |
| Reward | 1 Baseball Card |
| Completion Time | Very Short |
How to trigger Oh Yes… They Float side job
You won’t be able to start this quest freely at any time, which is where many players get confused. The side job becomes available only during the main mission “It All Points Here, Right?”.

While progressing through that mission, you should look for Millie Curd and interact with her as soon as possible. She will mention needing balloons, which immediately flags the side job in your log.
If you skip talking to her during this window, you may miss the opportunity or delay completion.
Where to get the Pack of Deflated Balloons
Once the quest is active, your next objective is to purchase the required item rather than finding or crafting it.

The Hustler’s Shop is the only place where you can buy the Pack of Deflated Balloons, and it costs 25 coins, making it one of the cheaper quest items in the game.
Make sure you have enough coins before heading to the shop, otherwise you’ll need to grind a bit before continuing. Fortunately, 25 coins is easy to gather from minor activities or previous missions.
How to complete the Oh Yes… They Float side job
Step 1: Talk to Millie Curd during the mission
Locate Millie Curd during “It All Points Here, Right?” and initiate conversation. She will explain her need for balloons, which starts the side job.

Step 2: Head to the Hustler’s Shop
Navigate to the Hustler’s Shop as soon as you receive the objective. There’s no need to explore elsewhere since the item is not found in the world.

Step 3: Purchase the balloons
Buy the Pack of Deflated Balloons for 25 coins. Double-check your inventory after purchase to avoid unnecessary backtracking.

Step 4: Return to Millie Curd
Go back to Millie Curd and hand over the balloons. This completes the side job instantly. You’ll receive 1 Baseball Card as your reward, which contributes to your collectible progression.

Rewards from Oh Yes… They Float side job
Even though the reward might seem small, this side job contributes to collectible completion and overall game progression. Baseball cards are often tied to achievements, completion percentages, or hidden bonuses.
| Reward | Type | Importance |
|---|---|---|
| Baseball Card x1 | Collectible | Medium (Completion-based rewards) |
Because the quest is quick, low-cost, and requires minimal travel, it’s absolutely worth completing whenever available.

Tips to avoid missing or delaying completion
Always talk to NPCs during main missions, especially when names are highlighted or they seem interactable. This game often hides side content within mission windows rather than marking it clearly.
Keep at least 25–50 coins on hand at all times, so you can instantly complete small purchase-based objectives like this one.
Check your inventory before returning, as forgetting the item or failing to buy it correctly can slow you down unnecessarily.