Mr. Driller has returned once more, to drill down into the Earth though the endless mysterious colored blocks. As always, the player must drill downward making sure not to be crushed or run out of air. Treasure chests are found from time to time, which contain items that will help your driller out. Mr. Driller Online features both single-player and, of course, online multiplayer modes.
Single-player includes standard driller mode at a variety of depths, as well as a quest mode where each section of 100m must be completed in a certain way, such as without using items, creating a chain of a certain size, or reaching the goal within a time limit. Multiplayer mode features two modes: Solo Battle, where players compete for score on their own; and Tag Battle, where teams of two work together. There are six different characters available, each with their own attributes and abilities.