Use Arrow Keys (or WASD) to move. Collect all gems to clear stage. Use explosive to break the breakable bricks.
Gem Monster is collecting Gems, help him to collect all Gems, once all gems are collected in a stage, the stage is completed. Be aware of stones, don't let them fall on the Monster. Use the explosive to blow up the breakable bricks. The explosive is activated when it is moved or a stone falls on it.