From the Super Mario Wiki, the Mario encyclopedia
The Seismockgraph is a souvenir located in the Doodads folder in WarioWare: Twisted! It is a spoof of a seismograph, which is used to record significant vibration-related activity, especially earthquakes. The Seismockgraph, on the other hand, is not only a lot simpler in function, it is meant to simply record the movement of the console when it is tilted. Any rotating is displayed on a sheet of graph paper with a red mark, and pressing pans the marker back to show what happened within the last few seconds.