Tall.io is a free arcade game developed by Orange B for Android users. In this game, you control a stickman and your goal is to collect small bricks that match your stickman's color to make it taller. The more bricks you collect, the taller your stickman becomes. The game is set in an arena where you have to compete with other stickmen. Your ultimate goal is to bring down all the stickmen in the arena.

The game is easy to play and the controls are simple to understand. You can move your stickman by dragging it across the screen. The graphics are colorful and vibrant, making the game visually appealing. The game also has a competitive element to it as you have to strategize and keep in mind the level of your opponents to beat them. Overall, Tall.io is a fun arcade game that is perfect for Android users who want to pass the time and enjoy a competitive game.