Investor

Business Update

September 2006

Safe Harbor Statement

Certain statements that may be made today will be considered “forward looking” as that term is defined under the rules of the Securities and Exchange Commission. Such forward looking information and statements involve risks and uncertainties that could lead to the actual results differing from those contained in today’s presentation and discussion. The general factors impacting future results are discussed in detail in our SEC filings. The presentation is only valid for today’s date and Bally undertakes no obligation to update the information contained in this report.

Presentation Outline

• Overview of Bally Technologies, Inc.• Gaming Review• Systems Review• Company and Investment Highlights

Corporate Overview

Worldwide technology company engaged in the design, assembly, distribution and operation of diversified gaming devices and casino systems for traditional and non-traditional markets

75 year history in gaming

Headquarters: Las Vegas, NV

Worldwide Employees: 1,640

Own and operate the Rainbow Casino in Vicksburg, Mississippi

Status of Financial Filings

Step One: RestatementsStep Two: Quarterly Statements FY

06Step Three: Form 10-K FY 06Step Four: Q1 for FY 07

Focused Technology Company

January 2003 -- Announced strategy to sell non-core assets to focus on our Bally Gaming and Systems “core” technology assets Disposed of four businesses with proceeds of $156.5

million Repaid $100M of term debt

Acquisition strategy (2003-2006) targeted technology-based companies in order to expand product offerings to cover the full scope of the gaming floor ACSC Casino MarketPlace Sierra Design Group Micro Clever Consulting MindPlay LLC

Focus Change - Bally Technologies, Inc.

Reflects our business focus on technology and innovation and building the Bally brand

Provides clarity to our stakeholders

Finalizes the company identity subsequent to the completion of non-core asset sales and strategic acquisitions

Longstanding value of the Bally name in the gaming industry

Bally Today

Full service technology provider to the broad gaming industry. Three main business drivers:1. GAMING SALES

Domestic, International, Class II

2. GAMING OPERATIONSWide Area, Daily Fee

3. SYSTEMSSoftware, Hardware, Services

Total Solutions Provider

  Bally IGT WMSAristocr

at Atronic Konami

Video Slots

Reel-Spinning Slots

Class II

Video Lottery

Central Determination

International Games

Wide-Area Progressives

Licensed Titles

Proprietary Poker Games

AS400 - Based Systems

Linux - Based Systems

Windows - Based Systems

Group-Play Games

Table Game Systems

Table Game Hardware

Bonusing Technology

System - Based Games

Richard Haddrill — President, Chief Executive Officer 10+ years experience in gaming and technology industry

Gavin Issacs – Chief Operating Officer15+ years experience in gaming and technology industry

Robert Luciano — Chief Technology Officer 15+ years research and development experience in the gaming industry

Ramesh Srinivasan — EVP, Systems20+ years experience in technology and systems

Mark Lipparelli — EVP, Operations 17+ years experience in gaming and technology industry

Robert Caller — EVP, Chief Financial Officer 30+ years finance and accounting experience

Paul Lofgren — EVP, New Business Development13+ years experience in gaming and technology industry

Strong Management Team

Markets: Class III, Class II, Public, and International

Sold over 100,000 devices in the last 5 years

29,000 games on wide-area and daily fee arrangements

Largest systems provider - 240 casino customers

Worldwide licensing in over 260 gaming jurisdictions

Owner of Rainbow Casino - Vicksburg, Mississippi

Recent Company Announcements

Initial placement of Hot Shots March, 2006 (1,000 + Order Backlog)

Lincoln Park System Win Mexico initial order for 2,000 games – 2,000 online 18% share of games at Wynn Las Vegas System win at SouthCoast, 100% iVIEWs, Power Rewards System displacement of competitor system at SunCoast Borgata upgrade to iVIEW’s (4,100 units), Power

Progressive (branded as Power Winner) Initial placement of CineVision - January, 2006 Initial placement of S9000 five reel spinner – March, 2006 Strong share of games sold to reopened Mississippi

casinos Table Technology in Macau + TableView

Gaming Business

Gaming Product Line

• Stepper / Mechanical• Video

– Standard + Cinevision + High Profile• Participation & Fee Based Games• Class II and Central Determination• Poker

From G2E 2005

Post G2E 2005

M9000 Cinevision S9000

PokerV20 EHot Shots

Consolidation of Multiple Platforms to Alpha

Fully featured

Linux-based operating system

Download capable

Launched in April 2005 in all markets Platform approvals in all jurisdictions

Target titles for each market on plan

Gaming Technology

Domestic game replacement market likely will remain slow in for the remainder of CY 2006

New market / expansion opportunities:Domestic Gulf, FLA, PA

NY Lottery

Diversified portfolio of technology assets allows for faster reaction time for new market opportunities (e.g. Mexico)

Downloadable Gaming Strategy bolstered by C2/CD experiences

New Opportunities in Video for Bally Much Tighter Focus on International Initiatives March 2004 acquisition of Sierra Design Group provided a

strong presence in the Class II and central determination gaming markets (Key Markets – WA, OK, Fla)

International Mexico, Europe, Asia

South America

Domestic and International Expansion

Systems Business

A market share leader 35-40%+ domestic market share

Multiple Platform Options

Strong recurring revenue base 22% of revenues in fiscal 2005

Systems more critical to success Enhance the player experience, and

increase the yield per player

Large client list for upgrades and product expansions

Systems Technology

Selected Customer Portfolio

CORPORATE LEVEL: Harrahs, Boyd/Borgata,

Coast Casinos, Sands/Venetian, Trump, Pinnacle,

Penn, Isle of Capri, Colony Capital (Resorts),

Tropicana, Alladin, Fitzgeralds, Eldorado

NATIVE AMERICA: Foxwoods, Mohegan Sun,

Mystic Lake, Pearl River, Seneca, Barona,

Seminole Tribe, Morongo

INTERNATIONAL: 80+ clients worldwide

Systems Technology

2000’s1990’s1980’s

•First deployment of player tracking

•All bonuses are generally manually or hand-keyed into systems

•Player tracking becomes standard throughout the industry

•Bally SDS introduces bar-coded marketing coupons as player incentive rewards

•ACSC introduces first cashless downloads to the slot machine

•Automated cashless rewards based on slot play

•Elimination of manual drawing tickets and carnival like prizes

•Targeted bonusing based on player demographics

•Interactive Touch Screen

Systems Product Migration

Unix UnixAS400, UNIX, Windows,

Tables, and System Gaming

Evolving Technology iVIEW used to interact with players Peripheral and configuration

management

Game personality downloads

Deployments in non-traditional markets

Game outcomes are already centrally determined

Strong systems presence likely to be an advantage

Systems Technology -- Downloadable Games

Table Technology

Automated Tools - Integrated

Bet Detection Card Dectection Surveillance Player Ratings Card Handling

Patented Technology

MoneyPieces™ gaming chips

Market Potential – 30,000 Table Games

Deep historical and current intellectual patent portfolio in multiple product areas.

Market leading development centers in the US, UK, France, and India.

R&D spending as a percentage of revenues: 9.0% (2005), 7.6% (2004), 5.2%

(2003)

R & D and Patent Focus

Investment Highlights

Investment Highlights

Leading developer of gaming technology Strong Product Portfolio Hitting Market Cabinet, Platform and Content Focused Corporate Strategy

Industry leader in systems Strong Support History iVIEW gaining traction Bonusing and promotions software

Strong presence in Class II markets Washington, Florida, and Oklahoma

Domestic and International expansion Video Markets Florida, Pennsylvania and NY Lottery Mexico, South America, Asia and Europe

Bally Technologies, Inc.

Q & A