C4 Ultimate Energy teams up with Godzilla for a limited-edition Sour Blue Razzilla flavor packing 300mg caffeine. The Tri-Stim Experience combines caffeine, TeaCrine, and Dynamine for sustained energy without the crash. King of the Monsters meets King of Energy.
Hot on the heels of C4 Energy's Cereal Killer launch, Nutrabolt is closing out 2025 with another massive collaboration. This time, they're partnering with one of cinema's most iconic franchises: Godzilla.
Launched on Godzilla Day (November 3, 2025), the new C4 Ultimate Energy x Godzilla delivers 300 milligrams of caffeine in a limited-edition Sour Blue Razzilla flavor. This isn't your standard C4 Energy drink. It's the C4 Ultimate Energy line, which brings significantly more firepower than the brand's flagship yellow cans.
This article dives into the partnership and the formula, because it comes with a tri-stim experience you'll most definitely want to... experience.
First, check availability on PricePlow (you're looking for the Sour Blue Razzilla flavor), check out our video review, and then let's get into the formula:
Cellucor C4 Ultimate Energy Drink (Carbonated) – Deals and Price Drop Alerts
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C4 Ultimate Energy: More Power Than Standard C4
While C4 Energy's original line delivers 200mg of caffeine per 16-ounce can, C4 Ultimate Energy amps that to 300mg caffeine. The difference goes beyond raw caffeine. Ultimate includes the brand's Tri-Stim Experience®, combining three complementary stimulants: caffeine, TeaCrine®, and Dynamine™.
This formula targets energy users who need more than a standard energy drink can deliver. Whether you're training, working long shifts, or need sustained focus, the Ultimate line positions itself as C4's highest-intensity ready-to-drink option.
The Godzilla collaboration makes perfect sense for this tier. If any product in C4's lineup deserves a "King" partnership, it's the one with the most caffeine.
Sour Blue Razzilla: Electric Tartness Meets Berry Sweetness
The flavor profile leans into sour blue raspberry, marketed as an "earth-shaking burst of electric tartness fused with berry sweetness." C4 describes it as matching the electric, stormy visual identity they've built around Godzilla's atomic power.
Like other C4 Energy drinks, this delivers:
- Zero sugar
- Zero artificial colors
- 10 calories per can
The formulation uses sucralose and acesulfame potassium for sweetness, keeping total carbohydrates at 0 grams.
The Tri-Stim Experience: Caffeine, TeaCrine®, and Dynamine™
The Tri-Stim Experience® differentiates C4 Ultimate Energy from standard caffeine-only energy drinks. Here's what's inside each 16-ounce can:
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Caffeine (300mg)
At 300mg per can, this sits at the upper end of ready-to-drink energy products, matching what you'd find in many pre-workout formulas. Caffeine works primarily through adenosine receptor antagonism in the central nervous system, blocking adenosine's inhibitory effects on neurotransmitter release. This mechanism increases concentrations of dopamine, norepinephrine, and acetylcholine, driving improvements in alertness, focus, and vigilance.
Beyond cognitive enhancement, caffeine reduces perceived exertion during exercise and may help maintain motor unit recruitment under fatigue. Research demonstrates benefits across both endurance and power-based activities, with effects on reaction time and psychomotor performance extending well beyond simple wakefulness.
At this dose, expect sustained energy for several hours. The 300mg threshold positions C4 Ultimate Energy as a serious performance tool rather than casual refreshment.
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TeaCrine® (Theacrine)
A methylurate purine alkaloid structurally similar to caffeine, TeaCrine® delivers sustained energy without the jitters or habituation effects associated with caffeine alone. Unlike caffeine's relatively short half-life, theacrine extends around 26 hours, providing longer-lasting stimulation through adenosine and dopamine receptor modulation.
When combined with caffeine, theacrine produces a synergistic effect. Co-administration significantly increases theacrine bioavailability and exposure without altering its half-life, amplifying energy and focus while reducing fatigue. This pairing enhances cognitive performance during complex tasks and improves time-to-exhaustion in endurance scenarios without elevating heart rate or blood pressure. The combination offers fast-acting stimulation from caffeine with extended benefits from theacrine.
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Dynamine™ (Methylliberine)
Dynamine™ is a purine alkaloid naturally found in kucha tea leaves. Structurally similar to both caffeine and TeaCrine®, it acts primarily by inhibiting adenosine receptors -- the same targets caffeine blocks to reduce fatigue signals.
What makes Dynamine™ unique is its faster onset and shorter duration compared to TeaCrine®. While TeaCrine® provides sustained energy over several hours, Dynamine™ kicks in quickly, delivering an immediate boost that complements caffeine's effects. This creates a layered energy experience: Dynamine™ hits fast, caffeine sustains the middle phase, and TeaCrine® extends the duration without the typical crash.
As mentioned above, research shows Dynamine™ works synergistically with caffeine to enhance focus and energy without increasing heart rate or blood pressure beyond caffeine alone. The combination amplifies mental alertness while maintaining a smooth, controlled stimulant experience.
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Supporting Ingredients
Beyond the Tri-Stim blend:
- Taurine (amount not disclosed) - supports cellular hydration and at high enough doses, promotes endurance.
- Niacin (Vitamin B3): 30mg (190% DV) - NAD+ precursor used as a cofactor in hundreds of biochemical reactions
- Vitamin B12: 6mcg (250% DV) - Functions as an enzyme cofactor supporting DNA synthesis, amino acid metabolism, and fatty acid metabolism.
- Sodium: 180mg (8% DV) - The body's main extracellular electrolyte, supporting fluid retention in the bloodstream and maintaining plasma volume during exercise
- Potassium: 80mg (<2% DV) - A small amount to support nerve and muscle function by supporting the sodium-potassium pump.
The B-vitamin complex supports energy metabolism, while taurine adds a staple ingredient found in most energy drinks, and the electrolytes are great for C4's athletic background.
Why Godzilla?
Since the original 1954 film, Godzilla has dominated pop culture as the undisputed King of the Monsters. The franchise spans 70+ years, 38 films, and countless adaptations. Godzilla isn't just a movie monster... it's a cultural icon representing unstoppable power and endurance.
"Since the first film, Godzilla has reigned as the undisputed King of the Monsters," said Robert Zajac, Chief Marketing Officer at Nutrabolt. "What a perfect partner for C4 Ultimate Energy, a legend among energy drinks. While C4 doesn't have heat rays, it does have 300mg of caffeine and a brand-new Sour Blue Razzilla flavor that packs a delicious punch."
Kristin Parcell, General Manager of Toho International, emphasized the partnership's reach: "We're thrilled to partner with C4 Ultimate Energy to bring fans a powerful new way to experience the energy and excitement of Godzilla. This collaboration celebrates the unstoppable spirit that Godzilla represents, while connecting with a whole new generation of fans."
The visual identity matches Godzilla's aesthetic: electric blue, metallic black, and stormy lightning evoke the famous atomic breath. The thematic taglines reinforce the connection, like "Be the Last One Standing" and "King of Energy".
For collectors and franchise fans, this becomes more than just an energy drink. It's a limited-edition crossover between two performance-oriented brands.
Where to Buy C4 Ultimate Energy x Godzilla
C4 Ultimate Energy x Godzilla launched November 3, 2025 (Godzilla Day) and is available through both Cellucor and Godzilla's website. You can also check availability for flavors:
Final Thoughts: When 200mg Isn't Enough
C4 Energy's Cereal Killer brings fruity cereal flavor to the performance energy drink category -- 200mg caffeine, beta-alanine, zero sugar, and NSF Certified for Sport. Saturday morning nostalgia meets serious training fuel.
C4 Ultimate Energy x Godzilla fills a specific niche: high-caffeine users who want more than standard energy drinks without stepping into pre-workout territory. At 300mg of caffeine plus the Tri-Stim blend, it bridges the gap between casual energy drinks and gym-focused formulas.
The Godzilla partnership adds collectible appeal, but the formula stands on its own. If you've been using standard C4 Energy (200mg) or similar products and need more intensity, this delivers without requiring you to mix powder.
Whether you're a Godzilla fan, a high-caffeine user, or just curious about sour blue raspberry, Sour Blue Razzilla brings blockbuster-sized energy to the ready-to-drink market.
Cellucor C4 Ultimate Energy Drink (Carbonated) – Deals and Price Drop Alerts
Get Price Alerts
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Disclosure: PricePlow relies on pricing from stores with which we have a business relationship. We work hard to keep pricing current, but you may find a better offer.
Posts are sponsored in part by the retailers and/or brands listed on this page.
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