Seirei Senshi Spriggan[a] is a 1991 vertically scrolling shooter video game developed by Compile and published by Naxat Soft in Japan for the PC Engine CD-ROM².

Seirei Senshi Spriggan garnered positive reception from critics since its release on the PC Engine CD-ROM², most of which reviewed it as an import title; praise was given to the overall presentation, rich and colorful visuals, variety of stages, weapon system, controls and gameplay.

[3] Toyama recounted the project's development in a 2012 interview, stating that Spriggan was originally intended for the Sega Mega Drive but switched to PC Engine instead due to, according to producer Masamitsu Niitani, demand from players for Compile to make a shooter game for the platform.

Once the team began developing for the console, Toyama realized they could make "something great" due to its faster CPU speed and CD-ROM technology allowing full voice-acting.

[10] An English localization, under the title Ghost Warrior Spriggan, was showcased by Turbo Technologies at the 1992 Summer Consumer Electronics Show and slated to be published by Working Designs in 1993, but was never released.

[14][15][16] The title was included in both the Japanese and western variants of the PC Engine Mini console in 2020, marking its first official appearance in North American and European regions.

Public reception was also positive: readers of PC Engine Fan voted to give Spriggan a 21.48 out of 30 score, ranking at the number 203 spot in a poll, indicating a popular following.

[21] Likewise, Joystick's Jean-Marc Demoly and Alain Huyghues-Lacour of French publication Joypad gave positive remarks to the stage variety, weapon system, large bosses, audiovisual presentation and controls, regarding it to be better than Gunhed.

[27] Hardcore Gaming 101's Kurt Kalata remarked that the weapon system was confusing and felt that the synthesized soundtrack lacked in both intensity and catchiness compared to MUSHA.