In Ninja Block, players must navigate a ninja through a grid-based world filled with obstacles. The player's primary task is to rotate a set of blocks to create a path for the ninja to move along, while avoiding hazards and finding the shortest route to the goal.
The main challenge lies in planning ahead and carefully rotating the blocks to clear a path, all while anticipating the ninja's movements and avoiding potential dangers. The game can be played directly in a web browser, with no need for downloads or registration.