Rescue Rainbow Letter is a free Android game developed by Chan Chun Tat. It falls under the category of games and is designed to challenge your brain. The game involves rescuing Rainbow Letters that are caught under a rockslide by building a machine to save them.

The game is simple yet intriguing, with its graphics, sound, and effects that make it hard to stop playing. The game's objective is to connect the pieces and make everything click to save everyone. With each level, the difficulty increases, and the brain-teasing challenges keep you engaged. The game is perfect for people who love puzzle games and want to test their skills.

Overall, Rescue Rainbow Letter is a fun game that challenges your brain and keeps you entertained for hours. It is free to download, and its graphics, sound, and effects make it stand out from other puzzle games. If you're looking for a game that will keep you engaged and test your skills, then Rescue Rainbow Letter is the perfect game for you.