Taito Chase H.Q. (Prototype)

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Title Screen
Taito Chase H.Q. (Prototype)
Dump status Released
Dumped by SMSPower.org
Released by SMSPower.org
File release date March 27, 2021
Origin EPROM cartridge
Labels CHASH (...) 2.
Ownership Bock (? - Present)
Game Taito Chase H.Q.
System Sega Master System
Genre Racing
Release date EU 1990
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A prototype of Taito Chase H.Q. (also known as Chase H.Q.) for the Sega Master System.


  • This build hardcodes port $3E controls to the cartridge slot for some reason. The final reads from $C000 instead.
  • This build lacks the delay in the VBlank that executes before reading player controls that was added in the final build.
  • This build lacks code to reset certain states when you reset the console.




Very special thanks to Bock at SMSpower.org for this release!

See also

Original release post on SMSPower.org. (Archive)