The Party Zone

Partial

Bally1991WPC-FLIPTRONICbally.the-party-zone.1991

OPDB IPDB bally/the-party-zone-1991.mdbally/the-party-zone-1991.json

Wire it up

what an authoring tool needs first
Bind this ROM
pz_f4

9 ROM sets resolve to this machine. Clones share the definition unless a hardware difference is listed.

Controller platform
pinmame.wpc-fliptronic

PinMAME already reports logical active state. Do not invert again in the table — normally-closed is a physical fact recorded per switch, not a runtime transform.

Displays

No display inventory recorded yet.

Address space
Switches
13–85 (51)
Solenoids
1–24 (16)

Coverage

Partial

Real evidence exists, but authoring requirements are still missing or in conflict. Verify before shipping a table.

Completion19%

Progress is derived from the fixed author-readiness requirements. It helps rank unfinished work, but only a 100% author-ready definition passes the publication gate.

Catalog Identity
validated
Address Enumeration
unknown
Semantic Naming
unknown
Physical Wiring
unknown
Mechanisms
unknown
Variant Coverage
candidate
Recreation Knowledge
unknown
Still missing · 13
Driver MappingInput EnumerationInput SemanticsOutput EnumerationOutput SemanticsDisplay InventoryMechanism InventoryMechanism BehaviorPolarityVariant DifferencesRecreation NotesProvenanceSpatial Placement

Switches

The addresses PinMAME reports as closed. Numbers are the public API values, not matrix hardware pins.

51 addresses

Switch map

Column × row matrix — the address is column·row.

used unused
 
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Hover or tap an address to identify it.
51 shown
# Name Device ID Evidence
13
Start
switch.start candidate
14
Tilt
switch.tilt candidate
16
Ha1
switch.ha1 candidate
17
Ha2
switch.ha2 candidate
18
Ha3
switch.ha3 candidate
21
Slam Tilt
switch.slam-tilt candidate
22
Coin Door
switch.coin-door candidate
23
Ticket
switch.ticket candidate
26
Bop B
switch.bop-b candidate
27
Bop O
switch.bop-o candidate
28
Bop P
switch.bop-p candidate
31
Back Ramp
switch.back-ramp candidate
34
EDM1
switch.edm1 candidate
35
EDM2
switch.edm2 candidate
36
EDM3
switch.edm3 candidate
37
EDM4
switch.edm4 candidate
38
EDM5
switch.edm5 candidate
41
Back Popper
switch.back-popper candidate
42
Right Popper
switch.right-popper candidate
43
Left Jet
switch.left-jet candidate
44
Right Jet
switch.right-jet candidate
45
Bottom Jet
switch.bottom-jet candidate
51
Head Opto1
switch.head-opto1 candidate
52
Head Opto2
switch.head-opto2 candidate
53
Head Opto3
switch.head-opto3 candidate
54
Left Inlane
switch.left-inlane candidate
55
Left Outlane
switch.left-outlane candidate
56
End Zone
switch.end-zone candidate
57
Right Inlane
switch.right-inlane candidate
58
Right Outlane
switch.right-outlane candidate
61
Shooter
switch.shooter candidate
62
Dancer Lane
switch.dancer-lane candidate
63
WOOC Lane
switch.wooc-lane candidate
64
Top Rebound
switch.top-rebound candidate
65
Skill Shot
switch.skill-shot candidate
66
Request R
switch.request-r candidate
67
Request K
switch.request-k candidate
68
Request T
switch.request-t candidate
71
Cottage1
switch.cottage1 candidate
72
Enter Ramp
switch.enter-ramp candidate
73
Left Sling
switch.left-sling candidate
74
Right Sling
switch.right-sling candidate
75
Out Hole
switch.out-hole candidate
76
Trough1
switch.trough1 candidate
77
Trough2
switch.trough2 candidate
78
Trough3
switch.trough3 candidate
81
WOOC Way
switch.wooc-way candidate
82
WOOC Out
switch.wooc-out candidate
83
WOOC Of
switch.wooc-of candidate
84
WOOC Control
switch.wooc-control candidate
85
Cottage2
switch.cottage2 candidate

Controlled devices

Everything the ROM can energise, grouped the way a table author builds it.

Coils, magnets & motors

16
16 shown
# Name Device ID Evidence
1
Back Popper
coil.back-popper candidate
2
Right Popper
coil.right-popper candidate
3
DJ Mouth
coil.dj-mouth candidate
4
DJ Eject
coil.dj-eject candidate
5
Dummy
coil.dummy candidate
6
Comic Mouth
coil.comic-mouth candidate
7
Knocker
coil.knocker candidate
9
Out Hole
coil.out-hole candidate
10
Ball Rel
coil.ball-rel candidate
11
Left Jet
coil.left-jet candidate
12
Right Jet
coil.right-jet candidate
13
Bottom Jet
coil.bottom-jet candidate
15
Left Sling
coil.left-sling candidate
16
Right Sling
coil.right-sling candidate
23
Head On Off
coil.head-on-off candidate
24
Head Direction
coil.head-direction candidate

Recreation notes

Working knowledge that has no schema field yet — edition differences, tuning values, pitfalls.

Coverage: partial - machine identity plus candidate-only I/O attachments. Playfield devices, wiring, mechanisms, and behavior are evidenced only as unverified candidates.

This record was promoted from the generated catalog stub stub.pinmame.pz_f4 by the catalog-wide identity pass of 2026-08-29. The promotion resolves machine identity and carries the catalog's residual driver grouping over unchanged, the platform and device attachments below were added by the 2026-08-29/30 candidate passes and assert nothing beyond candidate provenance. Every requirement in the definition's coverage.missing is genuinely outstanding.

Identity

  • PinMAME catalog: root driver pz_f4, description "Party Zone, The (F-4 Fliptronic)", manufacturer "Bally", catalog year "1991".
  • OPDB record G5oBw-ML3Kw (IPDB 1764) names this machine "The Party Zone" (Bally, manufacture date 1991-01-08); the resolved identity rests on the agreement of the PinMAME catalog and this reviewed mapping.
  • The definition's driver list is exactly the clone tree PinMAME declares under pz_f4; whether every listed driver really runs on this physical machine is unverified.

Drivers this record holds

  • pz_d1 (1991, Bally, clone of pz_f4).
  • pz_d2 (1991, Bally, clone of pz_f4).
  • pz_d3 (1991, Bally, clone of pz_f4).
  • pz_f4 (1991, Bally).
  • pz_f4pfx (2018, Zen Studios, clone of pz_f4).
  • pz_f5 (1991, Bally, clone of pz_f4).
  • pz_l1 (1991, Bally, clone of pz_f4).
  • pz_l2 (1991, Bally, clone of pz_f4).
  • pz_l3 (1991, Bally, clone of pz_f4).

PinMAME source contract (candidate)

  • The pinned PinMAME source declares pz_f4 at src/wpc/sims/wpc/full/pz.c:594 with machine module wpc_mFliptronS; the definition declares controller platform pinmame.wpc-fliptronic from it.
  • The driver source's named switch/solenoid symbols are carried as 67 candidate devices in the definition.

What a curator must establish next

Full input, output, and display enumeration with semantic names; physical wiring and polarity; mechanism inventory and behavior; variant differences across the clone tree; recreation knowledge from a manual, schematic, or known-working table; runtime provenance; and a normalized spatial placement for every physical device. No manual, schematic, or runtime-harness evidence is retained for this machine yet; the candidate sections above are the only retained I/O evidence so far.

ROM sets

Every driver that resolves to this physical machine.

ROM set Description Year Parent Hardware
pz_f4pfxParty Zone, The (F-4 Pinball FX) 2018pz_f4—
pz_l3Party Zone, The (L-3) 1991pz_f4—
pz_l2Party Zone, The (L-2) 1991pz_f4—
pz_l1Party Zone, The (L-1) 1991pz_f4—
pz_f5Party Zone, The (F-5 LED Ghost Fix) 1991pz_f4—
pz_f4Party Zone, The (F-4 Fliptronic) 1991——
pz_d3Party Zone, The (D-3 LED Ghost Fix) 1991pz_f4—
pz_d2Party Zone, The (D-2 LED Ghost Fix) 1991pz_f4—

Parent set: pz_f4 — clones share this definition unless a hardware difference is noted.

Pinball memory maps

External source LGPL-3.0-only3 maps

RAM layouts published by an independent project and mirrored here at a pinned commit. They are not part of this machine’s definition: nothing below was used as evidence for the definition, and none of it counts towards coverage. Check claims against the upstream project.

Upstream
tomlogic/pinball-memory-maps
Commit
d8693b9

This program makes use of content from the Pinball Memory Maps project.

pz_f4.map.json

williams-wpc-8Kv5format 0.8

maps/williams/wpc/pz_f4.map.json

Applies to ROMs
pz_f4pz_f4pfxpz_f5
Sections
auditschecksum16checksum8game_statehigh_scoreslast_played
Map JSONMap sourcePlatform JSONPlatform source

williams-wpc-8K defines the RAM layout this map’s offsets are read against — the map is not interpretable without it.

pz_l1.map.json

williams-wpc-8Kv7format 0.8

maps/williams/wpc/pz_l1.map.json

Applies to ROMs
pz_d1pz_l1
Sections
auditschecksum16checksum8game_statehigh_scoreslast_played
Map JSONMap sourcePlatform JSONPlatform source

williams-wpc-8K defines the RAM layout this map’s offsets are read against — the map is not interpretable without it.

pz_l3.map.json

williams-wpc-8Kv7format 0.8

maps/williams/wpc/pz_l3.map.json

Applies to ROMs
pz_d2pz_d3pz_l2pz_l3
Sections
auditschecksum16checksum8game_statehigh_scoreslast_played
Map JSONMap sourcePlatform JSONPlatform source

williams-wpc-8K defines the RAM layout this map’s offsets are read against — the map is not interpretable without it.

Evidence

Every claim above traces to one of these. When they disagree: a known-working VPX script wins on controller addresses and causality, the manual wins on wiring and construction, pinned PinMAME wins on emulator routing and display layout.

  • PinMAME catalog

    BSD-3-Clause

    pinmame.catalog.8371478a7640

    PinmameGetGames

    8371478a7640
    by
    PinMAME contributors
    rev
    8371478a7640

  • PinMAME source

    BSD-3-Clause

    pinmame.core.8371478a7640

    src/wpc/sims/wpc/full/pz.c:594 (machine module wpc_mFliptronS)

    src/wpc/sims/wpc/full/pz.c
    by
    PinMAME contributors
    rev
    8371478a7640

  • PinMAME source

    BSD-3-Clause

    pinmame.driver.pz

    src/wpc/sims/wpc/full/pz.c switch/solenoid #define block

    src/wpc/sims/wpc/full/pz.c
    by
    PinMAME contributors
    rev
    8371478a7640
    sha256
    ebd8693b75dd…

Something wrong or missing?

This definition still has 13 unmet requirements, listed under Coverage above. Fixes belong in the definition itself — editing on GitHub forks it for you and opens the pull request.

Cite a source for anything you change — a manual page, a line in a working VPX script, PinMAME source, or a reading from the machine's own service menu. Claims without provenance cannot be validated.

Edit the definition Edit the note Report a problem
Before you startCONTRIBUTING.mdschemas/machine.schema.jsondocs/MACHINE_DEFINITIONS_PLAN.md How to read a definition

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