Shadowalker is a side-scrolling action game for mobile phones. Players take control of Phoenix Shadowalker, a mysterious female bounty hunter that earns bounty by protecting the villagers from the evil spirits at sea. Strange ghostly creatures have been appearing during the night and kidnapping children from the villages. The frightened villagers have turned to Shadowalker, whom they've turned their backs on, to stop them and she follows the ghosts to investigate the reasons for the kidnappings!

The protagonist can use her sword and the gun she picks up to fight enemies and will automatically switch to shooting when an enemy is far from her, however, Shadowalker can't shoot while jumping. Throughout the game, Shadowalker will also unlock additional skills such as double jumping. Money earned in levels can be spent in stores on better weapons and armor, which can also be found inside chests in some of the levels. All the unlocked levels and stores are shown on a world map; however, they cannot be replayed.