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Catalogue of Arcade Emulation Software - the Absolute Reference

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Mad Planets


Mad Planets (c) 02/1983 Gottlieb.


In 'Mad Planets', the player takes control of a spaceship and must attempt to destroy a series of Earth-like planets which emerge from the center of the screen and rapidly move towards the player's ship - increasing in size as they do so. Destroying all of the planets in a round before the they reach their full scale will see the player awarded with bonus points. Fully-grown planets are orbited by a number of small moons, which, if destroyed, cause the planet to go 'mad' - turning red and making a beeline for the player's ship. The game also includes bonus rounds in which stranded astronauts can be rescued for additional points.


- TECHNICAL -


Game ID : GV-102


Main CPU : I8086 (@ 5 Mhz)

Sound CPU : M6502 (@ 894.886 Khz)

Sound Chips : DAC (@ 894.886 Khz)


Screen orientation : Vertical

Video resolution : 240 x 256 pixels

Screen refresh : 61.00 Hz

Palette colors : 16


The control panel consists of one or two player select buttons, a joystick with fire button and one rotary encoder (spinner) for rotating the ship. The players ship is moved vertically, horizontally or diagonally by the joystick. The ship can be rotated 360 degrees by the rotary dial. The fire button is a trigger styled switch located on the joystick.


- TRIVIA -


Approximately 1,500 units were produced.


At the time of Mad Planets, most video games did not include the designers names, as many companies feared that well-known designers would be lured away by competitors. This policy approached ridiculous heights in an April 1983 Videogames magazine interview with Davis, Thiel and Lee. While designers from Williams were identified by name in the same issue, the Gottlieb trio was identified as D. Ziner, J. Walkman, and R. Teeste - due to the company's policy of keeping designers' names secret. While management continued to prevent employees from including their full names in a game, they DID eventually agree to a small compromise by allowing the use of their initials (or nicknames) for the game's default high scores. In Mad Planets, the default high score screen contains the identities of almost the entire Gottlieb video crew.


Jean Baudin holds the official record for this game with 507,710 points on August 12, 2001.


Two Mad Planet machines were shown at the 2003 classic arcade games show 'California Extreme' in San Jose, California.


While Mad Planets, in its original form, was never ported across to any of the home machines of the time, a British programmer called Simon Nicol wrote an almost identical version called 'Crazy Comets', for the Commodore C64. It looked and played exactly like the arcade game that inspired it, but featured far superior music - written by industry legend, Rob Hubbard - which became celebrated in its own right.


- SCORING -
















Mad Plutona : 200 points.

Mad Marzon : 300 points.

Mad Kryptophan : 500 points.














ROUND PROGRESSIONS


WAVE 1, ROUND 1

Number of Attacking Planets : 2

Total number of Planets in Round : 5

Human points : ---

Perfect Round Bonus : 4000


WAVE 1, ROUND 2

Number of Attacking Planets : 3

Total number of Planets in Round : 6

Human points : ---

Perfect Round Bonus : 6000


WAVE 1, ROUND 3

Number of Attacking Planets : 4

Total number of Planets in Round : 7

Human points : ---

Perfect Round Bonus : 8000


WAVE 1, BONUS PERIOD

Human points : 200


WAVE 2, ROUND 4

Number of Attacking Planets : 2

Total number of Planets in Round : 8

Human points : 300

Perfect Round Bonus : 4000


WAVE 2, ROUND 5

Number of Attacking Planets : 3

Total number of Planets in Round : 9

Human points : 300

Perfect Round Bonus : 6000


WAVE 2, ROUND 6

Number of Attacking Planets : 4

Total number of Planets in Round : 10

Human points : 300

Perfect Round Bonus : 8000


WAVE 2, BONUS PERIOD

Human points : 300


WAVE 3, ROUND 7

Number of Attacking Planets : 2

Total number of Planets in Round : 11

Human points : 400

Perfect Round Bonus : 4000


WAVE 3, ROUND 8

Number of Attacking Planets : 3

Total number of Planets in Round : 12

Human points : 400

Perfect Round Bonus : 6000


WAVE 3, ROUND 9

Number of Attacking Planets : 4

Total number of Planets in Round : 13

Human points : 400

Perfect Round Bonus : 8000


WAVE 3, BONUS PERIOD

Human points : 200


WAVE 4, ROUND 10

Number of Attacking Planets : 2

Total number of Planets in Round : 14

Human points : 500

Perfect Round Bonus : 4000


WAVE 4, ROUND 11

Number of Attacking Planets : 3

Total number of Planets in Round : 15

Human points : 500

Perfect Round Bonus : 6000


WAVE 4, ROUND 12

Number of Attacking Planets : 4

Total number of Planets in Round : 16

Human points : 500

Perfect Round Bonus : 8000


WAVE 4, BONUS PERIOD

Human points : 200


WAVE 5, ROUND 13

Number of Attacking Planets : 2

Total number of Planets in Round : 17

Human points : 600

Perfect Round Bonus : 4000


WAVE 5, ROUND 14

Number of Attacking Planets : 3

Total number of Planets in Round : 18

Human points : 600

Perfect Round Bonus : 6000


WAVE 5, ROUND 15

Number of Attacking Planets : 4

Total number of Planets in Round : 19

Human points : 600

Perfect Round Bonus : 8000


WAVE 5, ROUND 16

Number of Attacking Planets : 5

Total number of Planets in Round : 20

Human points : 600

Perfect Round Bonus : 10,000


WAVE 5, BONUS PERIOD

Human points : 200


WAVE 6, ROUND 17

Number of Attacking Planets : 2

Total number of Planets in Round : 20

Human points : 700

Perfect Round Bonus : 4000


WAVE 6, ROUND 18

Number of Attacking Planets : 3

Total number of Planets in Round : 20

Human points : 700

Perfect Round Bonus : 6000


WAVE 6, ROUND 19

Number of Attacking Planets : 4

Total number of Planets in Round : 20

Human points : 700

Perfect Round Bonus : 8000


WAVE 6, ROUND 20

Number of Attacking Planets : 5

Total number of Planets in Round : 20

Human points : 700

Perfect Round Bonus : 10,000


WAVE 6, BONUS PERIOD

Human points : 200


WAVE 7, ROUND 21

Number of Attacking Planets : 2

Total number of Planets in Round : 20

Human points : 800

Perfect Round Bonus : 4000


WAVE 7, ROUND 22

Number of Attacking Planets : 3

Total number of Planets in Round : 20

Human points : 800

Perfect Round Bonus : 6000


WAVE 7, ROUND 23

Number of Attacking Planets : 4

Total number of Planets in Round : 20

Human points : 800

Perfect Round Bonus : 8000


WAVE 7, ROUND 24

Number of Attacking Planets : 5

Total number of Planets in Round : 20

Human points : 800

Perfect Round Bonus : 10,000


WAVE 7, BONUS PERIOD

Human points : 200


WAVE 8, ROUND 25

Number of Attacking Planets : 2

Total number of Planets in Round : 20

Human points : 900

Perfect Round Bonus : 4000


WAVE 8, ROUND 26

Number of Attacking Planets : 3

Total number of Planets in Round : 20

Human points : 900

Perfect Round Bonus : 6000


WAVE 8, ROUND 27

Number of Attacking Planets : 4

Total number of Planets in Round : 20

Human points : 900

Perfect Round Bonus : 8000


WAVE 8, ROUND 28

Number of Attacking Planets : 5

Total number of Planets in Round : 20

Human points : 900

Perfect Round Bonus : 10,000


WAVE 8, BONUS PERIOD

Human points : 200


WAVE 9, ROUND 29

Number of Attacking Planets : 2

Total number of Planets in Round : 20

Human points : 1000

Perfect Round Bonus : 4000


WAVE 9, ROUND 30

Number of Attacking Planets : 3

Total number of Planets in Round : 20

Human points : 1000

Perfect Round Bonus : 6000


WAVE 9, ROUND 31

Number of Attacking Planets : 4

Total number of Planets in Round : 20

Human points : 1000

Perfect Round Bonus : 8000


WAVE 9, ROUND 32

Number of Attacking Planets : 5

Total number of Planets in Round : 20

Human points : 1000

Perfect Round Bonus : 10,000


WAVE 9, BONUS PERIOD

Human points : 200


Rounds 29 through 32 are repeated for rounds 33 through 99.


- TIPS AND TRICKS -


Game play is initiated when either the one player or two player buttons are pressed. As the round begins, Approaching Planets from a distant galaxy begin to approach the players ship. The player has the option of destroying the planets as they are approaching him. Successfully destroying all Approaching Planets in a round awards bonus points for a Perfect Round. When a planet is allowed to reach the players ships orbit, it reveals a group of moons orbiting around it. This becomes an Attacking Planet. An Attacking Planet cannot be destroyed until the player has destroyed all of its Orbiting Moons. Once all of the Orbiting Moons have been destroyed, the planet transposes into the Mad Planet destine to destroy the players ship. The Mad Planet must be destroyed quickly as it travels faster and faster the longer it remains in orbit.


Each round has a predetermined number of planets per round and a predetermined number of Attacking Planets to fight at one time (see ROUND PROGRESSIONS). Once an Attacking Planet is destroyed, another planet approaches. If not destroyed, it also will become an Attacking Planet. This cycle continues until there are no longer any planets to destroy in that round. Once all the planets have been destroyed, the game advances to the next round.


In defense to the players attack, the Attacking Planet will release one of its Orbiting Moons into space in an attempt to destroy the players ship. This orange moon must be avoided or destroyed. If the Mad Moon is allowed to leave the screen without being destroyed, it is replaced in its original orbit around the Attacking Planet that released it.


The Bonus Period appears at the end of each wave. During this time, the player must pick up Humans while trying to destroy as many Comets as possible. The period ends when either the players ship is destroyed by a Comet, the Comet is allowed to leave the screen or ten Comets have been destroyed (see BONUS PERIOD).


- STAFF -


Designed and programmed by : Kan Yabumoto

Graphics by : Jeff Lee

Audio by : David Thiel

Hardware by : Jun Yum

Cabinet graphics : Terry Doerzaph


- PORTS -


* Computers :

Commodore C64 (1985, "Crazy Comets")