Unroll Ball | Drag & Roll is a free puzzle game available on Android devices. Developed by Seventynine, this game has over 200 levels for players to solve. The objective of the game is to unroll a path for a ball to reach the red goal before the time runs out. It offers two modes: Star Mode and Classic Mode, each with its own unique challenges.

To play, slide the blocks with your finger to create a path for the ball to move forward. Players can use hints to solve difficult levels or skip them if needed. Additionally, players can roll the ball out of trouble or watch video ads to earn free rubies.

The game features different scenarios on each level and more levels are expected to be added in the future. Players can view their records and challenge themselves to beat their best scores. Overall, Unroll Ball | Drag & Roll is a fun and challenging puzzle game that will keep players entertained for hours.