Hard limit: Nintendogs allows only one dog per save file (3 save slots = 3 dogs max). You cannot buy/adopt a second dog on the same file — the "Go Out" → "Kennel" option only lets you swap which dog is active.
| Method | Earnings | Tips |
|---|---|---|
| Walks (Daily) | §100–§500+ | Longer route = more $. Blue "?" = gifts (sell). Red "!" = trash (avoid). Use "Pull" leash for straight line. |
| Disc Competition (Lure Coursing) | §500–§2,000 (1st) | Train "Disc" daily. Boost Speed/Stamina. Win Amateur → Pro → Champion. |
| Agility Trial (Obstacle Course) | §500–§2,000 | Train "Agility". Touch obstacles accurately. Speed matters. |
| Obedience Trial | §500–§2,000 | Train tricks (Sit, Spin, Jump, Backflip). Voice clarity + consistency. |
| Sell Found Items | §10–§500/item | Boomerang, Piggy Bank, Mario Hat, Lucky Collar = high value. Sell at Secondhand Shop. |
| Bark Mode (StreetPass) | §100–§300 + items | Pass other players. Rare items possible. |
Max 3 dogs total (one per slot). No way to merge, walk together, or play simultaneously.