Rainbow Tower
The 
Rainbow Tower is located at 
City Town and is the hub for Visitor residences that players can unlock using 
Orange Sherbert Crates. When decorated to meet certain requirements, apartments inside of the Rainbow Tower can become home to various characters that can visit the Rainbow Tower.
The Rainbow Tower apartments' functionality works the exact same as the 
Visitor Cabins on 
Friendship Island.
Upgrading the Rainbow Tower
The player can upgrade the Rainbow Tower using Orange Sherbert Crates. To upgrade the Rainbow Tower, the player must 
interact with the Rainbow Tower's sign and choose the "upgrade" 
option. Upgrading turns the main room into a lobby, shifts any preexisting apartment room into Floor 1 of the Rainbow Tower, and opens Floor 2. 
My Melody's 
Handy Helper ability does not lower the cost of Rainbow Tower upgrades.
| Upgrade # | Cost in Crates
|
Additions |
|---|---|---|
| 0 | 7 | Singular apartment (Floor 1) |
| 1 | 15 | lobby + Floor 2 |
| 2 | 15 | Floor 3 |
Rainbow Tower interaction menu.
Rainbow Tower upgrade.
Rainbow Tower upgrade.
Rainbow Tower lobby.
Rainbow Tower elevator menu.
Visitor Residents
There are many Island Visitors who may visit an apartment inside of the Rainbow Tower if it meets their requirements. Some are always traveling, while others travel on a weekly or seasonal schedule. Their visits usually last until the end of the day when their current request is filled. A visitor that has reached a 
5-star rating by fulfilling their Daily Quests on 5 occasions can be asked to permanently move into an apartment.
If the player wants a visitor in residence to leave, the player can ask them to do so. However, it is not necessary to do so in order to move the visitor or their apartment. The apartment swap option works with visitors, whether they are temporarily visiting or permanently in residence.