Stack Jump is a free Android game developed by Guangzhou sir. The game is a simple yet addictive game that challenges players to help a ball reach the bottom of a tower. The game is easy to play and has straightforward controls.

To play, users must long-press the screen to let the ball fall without touching the obstacles. Players must avoid the black blocks, but when tapping action continuously happens, the stack ball changes into a fireball, which can break the black blocks. The goal is to help the ball go through the spiral pile to reach the end of the tower.

Stack Jump features one-tap and easy control, making it accessible to players of all ages. The game is very decompressed and simple to play, making it a great option for killing time or relaxing. Overall, Stack Jump is a fun and addictive game that is worth checking out for Android users.