Sega Ages 2500 Series Vol. 25: Gunstar Heroes Treasure Box

Sega Ages 2500 Series Vol. 25: Gunstar Heroes Treasure Box (SEGA AGES 2500シリーズ Vol.25 ガンスターヒーローズ ～トレジャーボックス～) is the twenty-fifth entry in the Sega Ages 2500 series for the PlayStation 2.

This game is a compilation, containing three titles by Treasure. Everything is emulated, with several additional options to tweak the emulation process, though the sound is slightly inaccurate. There are extensive galleries for all three games and overseas versions to play. More interestingly, a hidden prototype version of Gunstar Heroes exists.

It was later rereleased on the PlayStation 3’s PlayStation Network as a digital download as Gunstar Heroes: Treasure Box. As this entry was released with the older CERO rating system, the rerelease was rerated A.

Games included
Gunstar Heroes (Sega Mega Drive)
Dynamite Headdy (Sega Mega Drive)
Alien Soldier (Sega Mega Drive)
Gunstar Heroes Prototype (Sega Mega Drive)
Gunstar Heroes (Sega Game Gear)
Dynamite Headdy (Sega Game Gear)
Dynamite Headdy (Sega Master System)