Human Resource Machine
Program office workers to solve increasingly complex logic puzzles
Connect matching balls, build combos, and solve Android puzzle challenges

Ball Chain is an Android puzzle game built around connecting adjacent balls of the same color. Players extend a chain to increase its multiplier, then clear it so new balls fall into the grid. Special pieces add different effects, including bombs that clear surrounding spaces and rainbow balls that join different colors.
The game includes several modes, from score-based levels and timed rounds to fixed-board puzzles and survival challenges. Coins can be used for hints or refreshing the grid when a player gets stuck. Combos, daily challenges, cosmetic rewards, and global rankings provide further goals beyond completing an individual round. The game is free to download.
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