Revenge from Mars
Revenge from Mars is a pinball machine designed by George Gomez and manufactured by Williams Electronics Games (under the "Bally" label) in 1999. It is the sequel to the similarly themed "Attack from Mars". This game was the first to use the Williams Pinball 2000 system that overlays interactive video onto the mechanical playfield (see also "Star Wars Episode I"). An additional first was the default absence of a replay/special. Instead of awarding the player a free game when reaching a certain number of points, it was decided to rather award extra balls (default at 50  million and 200 million). This default behaviour can be changed by the operator though. Additionally the match sequence at the end of a pinball game (a random free play award) can be disabled. This was originally disabled in 1994's Road Show pinball machine by default, too, but was since enabled by default again. Gameplay. There are 9 different main modes which can each be completed to obtain a Saucer light. These 9 modes are divided into 3 different groups and are listed below. The initial mode begins upon its selection at the start of the game (either manually with  the action buttons or automatically after the choice times out). The modes move from left to right in sequence automatically after the previous mode has been completed (i.e. there is no "start mode" shot), with the exception of the middle group (Saucer) which begins after one of the other two mode groups has been completed. Each individual mode continues until it has been completed, even between balls. When a mode has been completed, the video will display a report. If the mode is completed properly according to the directions on the video display, the player will receive a "Flawless" rating . This rating must be achieved in order to obtain one Saucer light. Thus completing all of these modes with a Flawless rating will light all 9 Saucer lights. This, along with the other 2 requirements (Martian Multiball and Mothership Multiball), will light Attack Mars. Saucer lights can also be obtained in other ways (Martian Multiball, Stroke of Luck, Bonus Wave Multiball, Super Jackpot), so getting Flawless on all (or even any) of these modes is not a requirement. Software upgrades. The Revenge From Mars cabinet has the ability to allow for game software updates. To update the game software, it  is necessarily to connect a serial cable from the Revenge From Mars cabinet to a personal computer using the Pinball 2000 software updater program. Software updates can be obtained from http://www.planetarypinball.com/. Game software update 1.6 was the last official update provided by Williams for the Revenge From Mars Pinball 2000 cabinet. However, there are many unofficial game software updates, such as versions 2.0-2.2 which adds more and/or better game play options. Multiball modes. There are six multiball modes in "Revenge from Mars": These rules were extended and tweaked almost 20 years after the initial release by unofficial updates (see  https://www.mypinballs.com/software/rfm/code_updates.jsp), also introducing formerly unused sounds and graphics found in the ROMs.