The player removes Hacker's bugs by dragging and sorting them into a bar graph by color. (Each color is also assigned to a unique pattern for colorblindness accessibility.) They must scale the graph to keep all bars in view.
After every third floor, the player is asked a question about the distribution of bugs after the bar graphs are given mismatched scales. The number labels must be used to make comparisons, instead of the visual bar heights.
The game ends when all six floors are cleared.