Alpha Acrocanthosaurus (also called Super Alpha Acrocanthosaurus in the arcade/DS games) is an altered form of Acrocanthosaurus, being twice as powerful.
- Species: Acrocanthosaurus
- Attribute: Fire
- Power: 2000
- Technique: 300
- Sign: Paper
- Owner: Zander (Alpha Gang), Max Taylor (D-Team)
- Dinosaurs Defeated: Chomp, Paris
- Other: It's the only Alpha Dinosaur that appears in the anime, although not the only altered one. Zander's Acrocanthosaurus is later altered into this, too, in the DS Game.
- (Unnamed ability)
- Alpha Acrocanthosaurus shoots a blast of fire at the enemy. This was used to defeat Paris and Chomp. He doesn't need a Move Card to use it. Sometimes when he uses this ability, the sail on his back glows pink. A Move Card from the DS Game, Burst of Flames, looks similar to this attack.
- Alpha Bite
- When this Dinosaur wins a battle, you can reveal the top card of your deck. If you do and it's a Dinosaur, your opponent loses 2 extra Life Points. Then, put the revealed card into your discard pile.
Dr. Z altered Acrocanthosaurus using a new version of his Alpha Controller and gave it to the A-Team so they could steal the cards the D-Team had taken. His body and stripes were turned from shades of earthen orange to dark grey, purple, and pink. Additionally, he now had the ability to breathe fire without the use of a Move Card and his body was capable of radiating extreme heat - hot enough to partially melt the pavement he walked on and cause flammable objects to combust from close proximity.
However, the Alpha Gang lost control of him when they jumped into the ocean while holding the Alpha Scanner he had been summoned with, frying the Alpha Ball and the Super Alpha Controller. After going on a rampage and defeating both Chomp and Paris, Ace finally defeated him by combining Cyclone with ocean water and making a Hurricane attack. Max then retrieved the card.
The Super Alpha Acrocanthosaurus was created at the final stage of the story of an older version of Dinosaur King. The story depicts Dr. Z capturing a wild Acrocanthosaurus and then transforming it into the Alpha Dinosaur he desired.
- It was the first Alpha Dinosaur to appear in the arcade game.
- Alpha Acrocanthosaurus' unnamed ability might be a reference to Godzilla's atomic ray attack; Acrocanthosaurus' spine glows similar to how Godzilla's dorsal fins glow when about to charge his attack.
- He didn't appear in Dinosaur War!, possibly because his feet would've melted through the top of the Backlander where the battle took place.
- While the front of his card in the anime stays the normal gray of a Dinosaur Card, the back is changed to a shade of magenta-purple. Purple also replaces the gray of dinosaurs who are equipped with Spectral Armor, but that is a different, less reddish shade of purple.
|p · e · t||Fire Dinosaurs|
|Normal:||Abelisaurus · Acrocanthosaurus · Albertosaurus · Alioramus · Carcharodontosaurus · Daspletosaurus · Eocarcharia · Giganotosaurus · Gorgosaurus · Mapusaurus · Metriacanthosaurus · Rajasaurus · Saurophaganax · Siamotyrannus · Tarbosaurus · Torvosaurus · Tyrannosaurus · Yangchuanosaurus|
|Altered/Armored:||Acrocanthosaurus/Alpha · Alioramus/Super · Carcharodontosaurus/Armor · Daspletosaurus/Super · Eocarcharia/Armor · Eocarcharia/Super · Giganotosaurus/Alpha · Gigas · Gigas/Armor · Gorgosaurus/Alpha · Mapusaurus/Armor · Rajasaurus/Alpha · Rajasaurus/Armor · Rajasaurus/Super · Tarbosaurus/Super · Terry/Super · Torvosaurus/Armor · Torvosaurus/Super · Tyrannosaurus/Armor · Tyrannosaurus/Black · Tyrannosaurus/Super · Yangchuanosaurus/Armor|
|Main:||Terry · Gigas|