form of natural disaster: tornadoes. The new game, Whirlwind, was released in early 1990 to similar praise. Both games demonstrated components of Lawlor's design methodology.

Foremost, Lawlor introduced thematically appropriate elements that altered gameplay. For instance, upon progressing toward multiball mode in Earthshaker!, the playfield vibrated to simulate the effect of an earthquake. In a similar mode in Whirlwind, rubberized disks set flush in the