A free app for Android, by YCMobile.
In Rainbow Impostor Survivor, you play as the impostor, who is being chased through the haunted house by the Rainbow Monsters. The goal is to survive and get the treasure from the haunted house. You will have to fight, and shoot the other rainbow monsters, which are also chasing you.
The gameplay is very simple and easy to understand. You just need to move through the house and avoid the other monsters and obstacles, such as other impostors, traps, and even your own impostor. If you can make it to the end of the level, you will be rewarded with the treasure.
If you want to play with your friends, you can do that by creating a group on Facebook.