Level 28 - You need to use a Millionaire Costume on one of your pets.

Level 29 - Your pet needs to gain a stat from the Whirpool
Then come back here to complete your goal.

Level 30 - You need to buy an item from the Millionaire's Lodge

Level 31 - You need to have every Pearl in your Attic & visit the Pearls category.
Then come back here to complete your goal. 150K