This stage is is 3D, and is the only 3D level in all of the Gradius Series(besides Solar Assault). It scrolls fast, and there are no enemies or bosses, but there are free powerups... and that's it.

The music is High Speed Dimension.

Gradius III
Ships Vic Viper
Stages Sand StormAqua IllusionIn The WindHigh Speed DimensionEaster StoneDead End CellFire ScrambleCosmo PlantAccident Road (SNES exclusive)Crystal LabyrinthBoss RushMechanical BaseUnpleasant Cell (SNES exclusive)
Bosses GoliathBubble EyeIron MaidenBig Core MK IIIDogasVaifTwin Vaif (SNES) • GregolWyvernVulture DragonChoking WeedLizard CoreBeacon (SNES) • Zub Rush MK IITetranCovered CoreBig Core MK IICrystal CoreDeath MK IIDellinger CoreDisruptShadow GearShadow Dancer (SNES) • Big CoreBrain GolemBacterion