Arcade 1981 Stern Electronics Maze Shooter Small
A sequel to the 1980 game, "Berzerk", Frenzy once again has the player battling through a maze of rooms, populated by robotic skeletons, robotic octopi and walls. Everything in each room, except walls is deadly to the touch.

The object is to shoot all the robots, and then escape out of the room through one of the doorways. Like its prequel, Frenzy consist of 64000 levels. Once all 64000 have been cleared the game will crash.

Partager Frenzy


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  • maincpu Z80 (@ 2 Mhz)
  • S14001A
  • Exidy SFX
  • Orientation Yoko
  • Résolution 255 x 224
  • Fréquence 59.637405 Hz
  • Nombre de joueurs 2
  • Nombre de boutons 1
  • Type de contrôle joy (8 ways)

Screenshots de Frenzy

Frenzy - Screen 1
Frenzy - Screen 2
Frenzy - Screen 3
Frenzy - Screen 4
Frenzy - Screen 5

Scoring de Frenzy

Robots Killed (by you, another robot, or Crazy Otto) : 50 points.
Wall Dots Shot (by you or a robot) : 1 point.
Crazy Otto : 20 points per hit.
Bonus For Killing All Robots : 10 points per robot killed.

Frenzy et M.A.M.E.

0.30 [Brad Oliver, Keith Gerdes, Mirko Buffoni, Mike Cuddy]

Artwork available

- 0.137u1: Lord Nightmare re-added the color test mode to Frenzy. Added 'Hardware Tests' dipswitch.
- 23rd April 2009: 3D ARCADE - New 3D cabinet model for Frenzy from btribble.
- 0.129u4: Changed Custom sound to Exidy SFX.
- 27th December 2008: Mr. Do - Jeff Rothe sent me a photo of the instructions for the Frenzy bezel. This has finally been added.
- 0.125u9: Update S14001A core [Lord Nightmare]: Improved filtering to be more accurate to the chip, changed internal audio renderer to produce 4 bit sound as the real chip does. Moved filter outside of the main rendering loop into the glue code. Note: With this update, you may hear a whining noise that was not previously present. This is accurate to the chip! The real chip would almost always have an analog filter placed on its output to suppress this whine.
- 0.122u7: Zsolt Vasvari changed S14001A emulator to allow setting the clock frequency instead of the clock multiplier. This is how the real chip works. Changed the Berzerk driver to set the S14001A clock as per the schematics.
- 0.117u3: Added correct prom ($0 - address decoder/rom select) to Frenzy.
- 0.115u3: Significant changes to the Berzerk driver [Zsolt Vasvari]: Video timings, memory map and interrupt system implemented from schematics. Hooked up colors according to the schematics as well. The colors changed significantly. For example the yellow robots are now more like a mustard color. Changed VSync to 59.637405 Hz.
- 0.113: Added prom ($0 - address decoder/rom select)- copy of Moon War (prototype).
- 0.112: Proper implementation of noise generator in the Exidy/Berzerk sound circuit and fixed popping in Berzerk speech [Lord Nightmare].
- 0.111u6: Lord Nightmare added the missing volume and frequency controls to the Berzerk driver and s14001a core. Fixed the issue with random words being spoken instead of the proper ones. Word is now latched at the proper time. Changed S14001A clock speed to 5MHz.
- 0.111u5: Lord Nightmare fixed a minor problem with sound clipping in the s14001a. Aaron Giles added sound effects emulation to the Berzerk driver. Added Custom sound. Removed Berzerk samples.
- 0.111u4: Lord Nightmare, Kevtris and R. Belmont added preliminary emulation of the TSI S14001A speech synthesizer as found in Berzerk/Frenzy (and also Stern pinballs). Added S14001A sound.
- 7th January 2007: Mr. Do - Thanks to the loan by Vintage Arcade Superstore and vectorization by Zorg, we have Frenzy (and yes, Berzerk is in the cue, once the computer is up and running full speed).
- 0.103u1: Major cleanup/rewrite of the Berzerk driver [smf]: Merged memory & IO read/write maps. Video ram & magic ram share the same memory. Hooked up NVRAM in frenzy memory map. Emulates magic ram shifter/flopper with 9 74LS153's as per the schematics. Emulates magic ram ALU with 2 74LS181's hardwired to logic mode as per the schematics. 74LS181 emulation based on the logic diagram from the datasheet, supporting logic mode & arithmetic mode.
- 0.101u1: MASH added the missing voice roms to Berzerk and Frenzy.
- 0.93: Removed Custom sound.
- 15th May 2002: Zsolt Vasvari cleaned up the Berzerk driver.
- 0.36b7: Added Custom sound.
- 14th March 1999: Zsolt Vasvari has fixed Frenzy coin inputs.
- 0.35b6: Added 3rd coin slot.
- 0.35b5: Changed visible area to 256x224. Removed clone 'Frenzy (version 1)'.
- 0.34b8: Dave W. added high score saving to Frenzy.
- 0.33b2: Zsolt Vasvari fixed speed in Berzerk and Frenzy.
- 0.30: Brad Oliver, Keith Gerdes, Mirko Buffoni and Mike Cuddy added Frenzy (Stern 1981) and clone (version 1).
- 24th October 1997: Dumped Frenzy.

Other Emulators:
* Retrocade

Romset: 25 kb / 8 files / 16.2 zip
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