game
icon
title Speed Ball
set name speedbal
manufacturer Tecfri
year 1987
genre Pinball (hof)
category Pinball (hof)
driver status good
driver source speedbal.c
snapshots MW: in game / CT: in game | title / EJ: in game
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rating

56% after 16 votes
 
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display
colour emulation good
palette 768
display type raster
orientation vertical
resolution 224x256
frequency 60.000000Hz
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sound
sound emulation good
channels mono
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controls
players 2
nplayers 2P alt
controls other
buttons 4
coin slots 2
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hardware
cpu Z80 @ 4MHz
cpu Z80 @ 2.66MHz
audio YM3812 @ 3.6MHz
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data
version added .034b08
last change(s) none since version .53
roms
name size crc set flags sha1
sb1.bin  32768  1c242e34  speedbal    8b2e8983e0834c99761ce2b5ea765dba56e77964 
sb3.bin  32768  7682326a  speedbal    15a72bf088a9adfaa50c11202b4970e07c309a21 
sb2.bin  32768  e6a6d9b7  speedbal    35d228d13d4305f606fdd84adad1d6e435f4b7ce 
sb10.bin  32768  36dea4bf  speedbal    60095f482af4595a39be5ae6def8cd30298c1ef8 
sb9.bin  32768  b567e85e  speedbal    7036792ea70ad48384f348399ed9b136272fedb6 
sb5.bin  32768  b0eae4ba  speedbal    baee3fcb1399c56efaa5f97912de324d7b38f286 
sb8.bin  32768  d2bfbdb6  speedbal    b552b055450f438729c83337f561d05b6518ae75 
sb4.bin  32768  1d23a130  speedbal    aabf7c46f9299ffb8b8ca92839622d000a470a0b 
sb7.bin  32768  9f1b33d1  speedbal    1f8be8f8e6a2ee99a7dafeead142ccc629fa792d 
sb6.bin  32768  0e2506eb  speedbal    56f779266b977819063c475b84ca246fc6d8d6a7 
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cabinet art
art no cabinet, marquee, flyer, control panel or PCB images found
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additional information
info 0.34b8 [Joseba Epalza]

TEST MODE:
  • To enter test mode, keep pressed coin1 and coin2 during boot, until the RAM / ROM tests are finished
Bugs:
  • Running too fast - I recall the original game: attract mode music has two parts, one before and one after the letters from Speed Ball form the game name. The second part of the music must match the time the letters start flashing. Fix provided by Mamesick (0.122u5): Change the sound CPU Interrupts from 8 to 6: MDRV_CPU_VBLANK_INT(irq0_line_hold,8) <--- 6 seems the right value. It's a guesswork, because without a recording of PCB is hard to follow the bug description. However, the new value makes things very very close to what the original should be. speedbal36b11gre Bugfinder / Mamesick
WIP:
  • 0.98u1: Pierpaolo Prazzoli fixed Speed Ball again, after breaking it in the last update.
  • 0.97u5: Pierpaolo Prazzoli converted Speed Ball to tilemap system, added coin counters and cocktail mode, fixed priorities (probably they're not 100% right, because there still are some wrong priorities with a couple of pixel in the title screen) and cleaned up the driver. Swapped gfx3 roms.
  • 0.34RC1: Dave W. added hiscore save in Speed Ball.
  • 0.34b8: Joseba Epalza added Speed Ball (Tecfri 1987).
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Romset: 320 kb / 10 files / 74.5 zip
history Speed Ball (c) 1987 Tecfri.

A pinball video game.

- TECHNICAL -

Main CPU : Z80 (@ 4 Mhz), Z80 (@ 2.66 Mhz)
Sound Chips : YM3812 (@ 3.6 Mhz)

Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 768

Players : 2
Buttons : 4

- SOURCES -

Game's rom.
resource links view in MAWS
view in CAESAR
view high score and replay at MARP
view in Progetto EMMA (Italian)
view in arcade-history.com
view in arcade-history.com
view in GameFAQs
view in KLOV
view in KLOV
view in MamEnd
view in System16
view in VGMuseum Gamepics
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cheats
cheats
code comments
00000000:F8D4:0000000A:FFFFFFFF  Infinite Lives
00000001:F8D6:00000099:FFFFFFFF  Get Maximum bonus Now!
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