Unlock Golden Timer:
Tortimer will give you the Golden Timer when you have the Golden Bug Net, Golden Axe, Golden Fishing Rod, Golden Slingshot, Golden Watering Can and the Golden Shovel.

Unlock Golden Roses:
Plant red roses next to each other and black roses will eventually appear, then use the Golden Watering Can to water the dying black roses and they will be golden the next day.

Unlockable Post Office Savings Acount Rewards
Get the following amount of Bells to unlock the corresponding effect

Unlock Box of Tissues:
Save 1,000,000 Bells

Unlock Piggy Bank:
Save 10,000,000 Bells

Unlock Pelly's Pic:
Save 100,000,000 Bells

Unlock Phyllis's Pic:
Save 500,000,000 Bells

Unlock Town Hall Model:
Save 999,999,999 Bells


Unlockable Mush Furniture
Get acorns at the Acorn Festival and Cornimer will give you mush furniture for a specific amount of them

Unlock Mush Stool:
5 Acorns

Unlock Mush End Table:
10 Acorns

Unlock Mush Lamp:
25 Acorns

Unlock Mush Chair:
40 Acorns

Unlock Mush Dresser:
60 Acorns

Unlock Mush Closet:
80 Acorns

Unlock Mush Stand:
100 Acorns

Unlock Mush Table:
120 Acorns

Unlock Mush TV:
140 Acorns

Unlock Mush Bed:
170 Acorns

Unlock Forest Floor:
230 Acorns

Unlock Forest Wall:
200 Acorns

Unlockable HRA Bonus Items

Unlock Mansion Model - Earn 150,000 Points

Unlock One-Story Model - Earn 70,000 Points

Unlock Two-Story Model - Earn 100,000 Points


Unlockable House Upgrades

Unlock Expand House (1st) - Pay the debt of 19,800 Bells

Unlock Expand House (2nd) - Pay the debt of 120,000 bells

Unlock Upstairs Room - Pay the debt of 298,000 Bells

Unlock Left Room - Pay the debt of 598,000 Bells

Unlock Right Room - Pay the debt of 728,000 Bells

Unlock Back Room - Pay the debt of 848,000 Bells

Donation Unlockables
Donate the corresponding amount of Bells to Boondox town to unlock the following

Unlock Green Feather:
Donate 10,000 Bells

Unlock Blue Feather:
Donate 200,000 Bells

Unlock Yellow Feather:
Donate 500,000 Bells

Unlock Red Feather:
Donate 800,000 Bells

Unlock Purple Feather:
Donate 1,100,000 Bells

Unlock White Feather:
Donate 1,400,000 Bells

Unlock Rainbow Feather:
Donate 6,400,000 Bells


Nook Store Upgrades
Spend the corresponding amount of Bells at Nooks Store to unlock the following

Nooks Cranny (Level 1):
Available from start

Nook 'n' Go (Level 2):
Spend 25000 Bells

Nookway (Level 3):
Spend 65,000 Bells

Nookingtons (Final Upgrade):
Spend 240,000 Bells and have a friend shop at the store


Golden Tools Unlockables
Do the corresponding tasks around your town to unlock the following

Golden Bug Net:
Catch every type of Bug once

Golden Fishing Rod:
Catch every type of Fish once

Golden Axe:
Trade a scallop seashell to Pascal for the Golden Axe

Golden Watering Can:
Keep the environment perfect for 16 days in a row. You will then be rewarded with the Golden Can by Pelly or Phyllis.

Golden Shovel:
Bury a regular shovel in the ground and dig it up a day later and it will be golden

Golden Slingshot:
Shoot 15 items out of the sky and you will get it if you shoot it down