Drill Rotom is an Electric/Ground type. This body was originally created by humans so that Rotom could gather fossil fuels for them. It, however, only finds glee in causing small earthquakes.
Projector Rotom is an Electric/Dark type. Despite the device it inhabits being very outdated, its projections are very life-like, allowing it to spook both people and other Pokemon without issue through the use of footage from old horror films.
by The_Pixie_Stick