Rescue Birdy

https://play.google.com/store/apps/details?id=com.viGameStudio.RescueBirdy
Rescue Birdy is a puzzle game, players need to think and find a way to liberate the all souls of Birdy are freezing. This game has many levels, from easy to difficult, and specially, players can participate in the challenge with time limit to rescue Birdy. This game is very good for your IQ practicing.

Instruction: When you click on soul of Birdy, it and all souls nearly( just horizontal and vertical) will change status, if it is freezing, it will change to not freezing, and if it is not freezing, it will change to freezing. You will win when all souls of Birdy are not freezing.