Chase H.Q.^{[lower-alpha 1]} is a vehicular combat racing game, originally released as an arcade video game by Taito in 1988. It is sometimes seen as a spiritual successor to Taito's earlier Full Throttle. The player assumes the role of a police officer named Tony Gibson, member of the "Chase Special Investigation Department". Along with his partner, Raymond Broady, he must stop fleeing criminals in high-speed pursuits in a black Porsche 928.

Chase H.Q. was ported to many home computers by Ocean Software in 1989, including versions for the ZX Spectrum, Amstrad CPC, Commodore 64, MSX, Amiga and Atari ST. Taito produced versions for the Family Computer (1989), Game Boy (1990), Master System (1990), TurboGrafx-16 (1990), Game Gear (1991), and Saturn (1996). It was released for PlayStation 2 in Japan in 2007 as part of Taito Memories II Volume 2.

The game was a commercial success, becoming Japan's highest-grossing dedicated arcade game of 1989 while also becoming a hit overseas for arcades and home systems. The game was also well received by critics. It was followed by three arcade-based sequels: Special Criminal Investigation (1989), Super Chase: Criminal Termination (1992) and Chase H.Q. 2 (2007). Two spin-offs were also released: Crime City (1989) and Quiz H.Q. (1990).

At the start of each level the player is informed who they are pursuing, a great distance away: They must apprehend the criminal before their time limit expires.^[21] The criminal's car is constantly moving away, so if the player repeatedly crashes or drives too slowly, the criminal will escape. At some points during the game the road splits, and the correct turn must be taken, otherwise it will take longer to catch the criminal. When their vehicle is reached, the time limit is extended; the vehicle must be rammed a number of times until the criminal is forced to stop, then is arrested.

The game includes five levels.^[21] Both the initial time limit to reach the criminal and the time extension to ram the criminal are 60, 65, or 70 seconds.

When Nancy at Chase HQ (at the start of every level) calls on the radio, the frequency is often between 144 and 148 MHz. This is actually the 2-meter band of amateur or ham radio frequencies.

Although superficially similar in technology to Sega's Out Run, Chase HQ features significant technical advancements over that title in the presentation of perspective, hills and track splits.^{[citation needed]}

Villains (for arcade versions):

1. Ralph, the Idaho Slasher (White Lotus Esprit)

2. Carlos, the New York armed robber (Yellow Lamborghini Countach)

3. Chicago pushers (Silver Porsche 911)

4. L.A. kidnapper (Blue Ferrari 288 GTO)

5. Eastern Bloc Spy (Red Porsche 928)

The last villain's car is always listed as unidentified.

If the level is completed, bonus points are as follows: if completed without continuing, 100,000 times level in play, otherwise, 10,000; plus, 5,000 per second saved for completing level. A 5,000,000-point award is collected for beating the game.

Ocean released versions of the game for the ZX Spectrum, Amstrad CPC, Commodore 64, Commodore Amiga and Atari ST in December 1989.^[5] The MSX version was released in February 1990 only in Spain, roughly one month later after the launch of the rest of Ocean's versions in that market.^[6]

Taito produced ports (known as Taito Chase H.Q.) for the Family Computer (1989), Game Boy (1990/1991), Master System (1990), TurboGrafx-16 (1990) and Game Gear (1991). It was released on the Genesis as Chase H.Q. II (known as Super H.Q. in Japan), with some minor changes, including alternative player vehicles.

In December 1990, the game was included on the Wheels Of Fire compilation, which also featured Hard Drivin, Power Drift and Turbo OutRun on the commodore 64. In June 1991, the game was released on the Power Up compilation, which also featured also on the C64 Altered Beast, Turrican, Rainbow Islands and X-Out.

In 1991, the game was released for the FM Towns.

In 1993, Taito released Super Chase H.Q. (known in Japan as Super H.Q. Criminal Chaser) for the Super NES. Unlike other home versions, it is played in first person perspective and is based upon Super Chase: Criminal Termination rather than the original Chase H.Q. Gameplay is modeled on the original with some aspects of S.C.I. incorporated. A PAL version of Super Chase H.Q. was released exclusively in Australia in 1993 by Mattel (Nintendo's ANZ distributor until 1994) and re-released by Nintendo Australia thereafter. There is also a Super Chase H.Q. for the Game Boy, which was released exclusively in North America, in 1994. The game is similar to the Game Boy's Taito Chase H.Q. (1991).

In 1996, Taito released an emulation of the arcade original for the Sega Saturn in Japan, bundled together with Special Criminal Investigation on one disc.^[21]

In 2000, Chase H.Q. Secret Police was released for the Game Boy Color.

In July 2008, the TurboGrafx-16 version of the game was re-released on the Wii Virtual Console.^[22]

A spin-off was released in 1989 titled Crime City. The game play deviates from the traditional third-person driving and is instead a side scrolling type shooter.

Brian Kuh from Weirs Beach, New Hampshire holds the official arcade world record with a score of 3,596,680 points achieved on 1 June 2006 at Funspot Family Fun Center, Weirs Beach, New Hampshire. Robert Gray from Dumfriesshire, Scotland holds the official MAME world record with a score of 11,490,280 points achieved on 13 June 2010.

Chase H.Q. was successful enough to earn two arcade-based sequels - the widely released Special Criminal Investigation released in 1989 and the extremely rare Super Chase: Criminal Termination released in 1992. It also earned two spin-offs - the run and gun Crime City, and the quiz game Quiz H.Q..^{[citation needed]}

Special Criminal Investigation expands on the original with the addition of guns - the passenger can rise out of the T-top of his Nissan 300ZX Z32 and shoot at oncoming targets. To take advantage of this, enemies are placed throughout the level and will attempt to shoot at or ram the player as they attempt to pursue the main criminal. Deviating from the relatively realistic tracks on offer in the original, the sequel features pursuits through waterfalls and unfinished sections of elevated highway.^{[citation needed]}

Super Chase: Criminal Termination was the third arcade release in the Chase H.Q. series, released in 1992.^{[citation needed]}

The 1997 PlayStation game Ray Tracers, developed and released by Taito, has been described as "more or less a follow up" to the game,^[54] with "only a few differences" such as a different speed-boost system and a greater variety of targets.^[55]

In February 2006, Chase H.Q.: Nancy Yori Kinkyuu Renraku (Chase H.Q. - An Urgent Call From Nancy) was presented at the Arcade Operator's Union (AOU) trade show in Tokyo. It was shown again at AOU 2007.^[56] The game was released as Chase H.Q. 2 in December 2007.^[57]

Saint Etienne recorded a demo dance track called "Chase HQ" that was inspired by Chase H.Q. It includes samples of the "Oh man!" and "Punch the pedal!" exclamations from the game action. The track was released as a bonus track on the 2009 Deluxe reissue of the band's 1991 album, Foxbase Alpha.^{[citation needed]}

Chase HQ's gameplay, which involved ramming the enemy car while avoiding oncoming traffic, has been cited as a precursor to the gameplay of later titles such as Driver and Burnout.^[58]