Forneus F4, known as Emperor Forneus (エンペラーフォルネウス, Enperā Foruneusu) in Japan, is an Energy Layer released as part of the Burst System as well as the Cho-Z Layer System. It debuted with the release of the B-106 Booster Emperor Forneus 0 Yard on March 17th, 2018. It later debuted in western countries with the release of the SlingShock Starter Pack Forneus F4 0 Yard-S.


Forneus F4 is a Defense Type Energy Layer, the center features two shark heads, meant to represent the Layer's Japanese namesake; a Great Marquis of Hell in demonology, the sea monster Forneus. Forneus F4 features twelve counter-clockwise blades to create a round, low recoil shape, granting high Defense potential. As part of the Cho-Z Layer System, Emperor Forneus features metal in its design; in this case, in the shark details. The inclusion of metal makes Emperor Forneus heavier than most SwitchStrike/God Layers.

The placement of the metal improves Defense potential by not only increasing the weight but by creating a Centralized Weight Distribution which resists movement. However, the blades of Forneus F4 are warped which creates recoil, akin to Nova Neptune or Psychic Phantom, and the Centralized Weight Distribution creates poor Stamina, though the warped blades can create Destabilization potential and the heavy weight and strong teeth of the Layer's Takara Tomy release more than compensate for the recoil.

Like many other Cho-Z Layers, Emperor Forneus is unbalanced which increases Burst risk and drains Stamina. However, these issues can be solved with the use of a Level Chip that fits underneath the Layer.

Use in Defense Combinations

Emperor Forneus can be put to use in the Defense Combination Emperor Forneus 0/2/4/5/7/10 Cross/Glaive/Bump Atomic/Orbit. The heavy weight, tall teeth and counter-clockwise blades of Emperor Forneus gives this Combination high KO and Burst resistance while the warping of the blades can also Destabilize the opponent. The heavy weight of 0/2/4/5/7/10 bolsters KO resistance and Stamina while Atomic/Orbit can further bolster Stamina and KO resistance while Atomic specifically can add Life After Death along with Cross/Glaive.


Emperor Forneus features heavy weight, a low recoil design and destabilization potential, which made it a once Top-Tier choice for Defense Combinations. However, with the release of Archer Hercules, Hell Salamander, and Revive Phoenix, Emperor Forneus has become outclassed.

As such, Emperor Forneus is not a must have but is instead a welcome addition to a blader's collection.

Differences in the Hasbro Version

Hasbro's Forneus F4, unlike Takara Tomy's Emperor Forneus, does not feature any metal, making it lighter than most SwitchStrike Layers. As a result of this, Forneus F4 lags behind most SwitchStrike Layers such as Balkesh B3 and Spryzen Requiem S3.

As such, Forneus F4 is recommended for collection purposes only.


Takara Tomy



Takara Tomy