The more people that visit your house, the higher monstar rating you get. Its good to be popular and have a lot of friends. It helps.
To move up your MONSTAR rating on Moshi Monsters you have to get people to rate your room and you have to play the daily challenge everyday.
The star with a letter on it in your room/house on Moshi Monsters shows your MonStar rating. The lowest MonStar rating is Z and the highest is A.
This is the highest MonSTAR rating you can achieve. If you reach this rating, well done!
Your MonSTAR rating depends on how many people visit your room and how high they rate your room.
Timernator
This answer would always be changing since Moshi Monsters members would always be moving up a level. Try looking for monsters with a high MonStar rating.
There are several A list MonStars. To find an A list MonStar, click on monsters you see walking around on Moshi Monsters to view their profiles and to see what level of MonStar they are.
The monstar of the week changes every week
Your MonSTAR rating shows how popular you are. To get a higher level, (starting as Z and going up to A) you get your friends and other monster owners to visit your home.
There is a list on Moshi Monsters called the MonStar List. You start at Z and have to work your way up to A by getting people to be your friend and having people see your house. So, a U monster is just your rating in the MonStar List.
Your MonSTAR rating shows how popular you are. To get a higher level, (starting as Z and going up to A) you get your friends and other monster owners to visit your home.
To find popular members, visit places in Monstro City and click on the monsters who are out walking around. Check out their MonStar rating. Those with an A, B, C, or D rating are popular monsters.