This stage is a Boss Rush composed by six bosses (or seven if playing on a higher loop).
This level opens with swarms of red Zubs attacking (using the classic "Aircraft Carrier" theme). This is your last chance to power up before you face an onslaught of bosses. Note that if you die against any of the bosses, you'll still start with the Zub Rush again, but the boss you died on will appear next, skipping any bosses already defeated.
- Laser Tetran
- DeathDouble and Parasite Core
- Triple Core
- Juggler Core
- Fake final boss: Neo Big Core
- Real final boss: Heaven's Gate
|Theme of Formidable Guardians 1 - Zub Rush|
|Theme of Formidable Guardians 2 - Boss Rush Part 1|
|Theme of Formidable Guardians 3 - Boss Rush Part 2|
|Theme of Gradius Gaiden Boss - Stage Boss|
|Ships||Vic Viper • Lord British • Jade Knight • Falchion β|
|Stages||Beyond the White Storm • Requiem for Revengers • Into the Crystal Cage • Ruins of Silence • Organic Fortress • Green Inferno • On the Event Horizon • Formidable Guardians • Fate...|
|Bosses||Blizzard Crawler • Grave • Nobil • Shining Core • Moai Dimension • Mad Skin • Stinger Kid • Hunter Fang • Giga's Rose • Kraken • Laser Tetran • DeathDouble • Parasite Core • Triple Core • Deltatry • Juggler Core • Neo Big Core • Heaven's Gate • Boost Core • Gunner Wall • Heavy Ducker • Sol • O.V.U.M.|