Obscure Success vertical shmup with an original transformation gameplay. Colorful visuals, inventive bosses, pleasant learning curve. Flew under the radar at launch but genuinely worth a visit for genre fans.
Your verdict
Category
Shooter1 player12+
Co-op
Description
Hybrid shoot-'em-up alternating between vertical and horizontal phases in a science-fiction setting. Published by Success, released in Japan in 1998. Two ships with distinct configurations in cooperation, smooth transitions between vertical and horizontal scrolling modes, evolving weapon system, imposing bosses, simultaneous two-player mode. An original Saturn exclusive from Success.
Complete: box, manual and disc/cart very clean. Lightly handled.
Q1 damagedQ6 completeQ10 new
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Collector interest
Released in January 1998, this hybrid Success shmup alternates vertical and horizontal phases and ranks among the last major shooters exclusive to the Japanese Saturn. That late-life slot held back its print run as the console was already fading against rivals. Its value stems from that mix, an untranslated Japanese exclusive arriving late, paired with a solid reputation among devotees of the niche shooters in the Success catalogue.
Is Guardian Force still worth playing in 2026?
Guardian Force is a Success hybrid shoot'em up that alternates vertical and horizontal phases in a sci-fi setting, in which you pilot a flying tank with varied abilities. The transition between scrolling orientations, the snappy action and a versatile fire system bring real variety to the genre. The decent presentation and a fairly classic flow temper the originality. Kept exclusive to Japan, it will appeal to fans of retro shmups with an atypical structure and confidential curiosities of the machine, with an assertive identity.
