Retro Block Puzzle King is a free puzzle game available on Android that promises to improve your brain. With four different modes to choose from, this game offers a variety of challenges to keep you entertained.

The Level Mode offers 1500 levels of increasing difficulty to test your skills. The Arcade Mode is a fast-paced mode where you need to clear as many lines as possible in a limited time. Classic Mode allows you to play without any time constraints. Finally, Multi Mode allows you to play with your friends and compete against each other.

Retro Block Puzzle King also comes with various missions to add to the excitement. These include getting rid of two, three, or four lines at once, achieving a certain score, and eliminating blocks of a given color.

Overall, Retro Block Puzzle King is a great choice for puzzle lovers who are looking for a fun way to improve their cognitive skills. With its easy-to-use interface and challenging gameplay, this game is definitely worth a try.