OK Not sure if I got them right yet but here it comes:
1.Toadtown
Difficulty 1/5
How to get the :star:
This is the most basic board of all in toadtown you as usual chase for stars and standing on a green space will begin a parade that goes all over the board sending all players back to the Start Space.
2.Good Egg Galaxy
Difficulty 1/5
How to get the :star:
In this basic board you must go past all sorts of different paths to get to the star(sorta related to eternal star expect no k.kids in the way and no multiple stars) just basic board to chase for stars and if you step on a green space you'll end up in another area of the board.
3.Space Junk Galaxy
Difficulty 2/5
How to get the :star:
In this board you can buy as many stars as you want if you got enough coins for them they still move arround the board though and landing on a green space will send you or the star to another space in the board.
4.Ice Galaxy
Difficulty 3/5
How to get the :star:
In this board you have to choose different paths to get to the star there are 10 different paths and each one of them contains a task to get past them
task 1:Roll 5 or higher to move on
task 2:Use a device to continue onwards
task 3:Win 1 minigame to go on
task 4:Have at least 2 orbs to go on
task 5

ay 15 coins to move onwards
task 6:Be using a double dice item to go foward
task 7:Use a special character only item to move on
task 8:Choose 2 paths if you pick the wrong one you lose a turn(of course next turn you get to move foward anyway)
task 9:Have a triple dice item to move on
final task 10:Roll a 8 or higher to get the star
Landing on green spaces let's you skip a task.
5.Rainbow Galaxy
Difficulty 4/5
How to get the :star:
In this board you must buy the magic towers to earn a star you can steal towers from other rivals too if a tower as 20 coins in it it will be woth 2 stars if it has 40 coins it's worth 3 stars if it has 70 coins in it it's woth 4 stars and if it has 100 coins or more it's worth 5 stars landing on a green space will make a luma show up and give the tower 20 coins for the character that stepped on the space
6.Bowser Jr. Galaxy
Difficulty 4/5
How to get the :star:
In this board you start with 10 Stars and you must steal them from your rivals with chain chomps paying 10 coins let's you roll 1 dice paying 20 coins let's you roll 2 dices paying 30 coins let's you use 3 dices landing on a green space will lower the chain chomp dice proces in half
7.Bowser's castle
Difficulty 5/5
How to get the :star:
In the final board you get stars the basic way by chasing for them but landing on a green space will turn 20 spaces into bowser spaces or DK spaces depending on the green space this board is as big as a maze!