|First appearance||Tri-Twister Take Down|
Looming ominously over adversaries in battle, Krowll's appearance strikes fear even before he begins to attack. Krowll can fire a shock wave to blow opponents off the battlefield.
In A Royale Pain, Krowll is partnered up with Soon to participate in the Bakugan Battle Royale. Krowll also uses its BakuNano Slicerix against Robin and some other brawlers. Krowll then tried to fend off Silent Strike, when Shun had summoned it, although it lost with Bolcanon due to the barrier protecting Silent Strike.
In True Colors, Krowll battled against Taylean alongside Spyron and Vertexx, but was easily defeated.
In Unfinished Business, it appeared again under the use of Anubias. Both Dan and Drago were wondering why he had Krowll since it was not used by him before. Anubias then made him combine with Krakenoid to form Mutant Krakenoid and later Mutant Krowll.
- Ability Cards
- Battle Sign: Nullifies the opponent's ability and prevents them from activating new ones.
- Screw Ripper
- Krowll's head and body structure bears much resemblance to Spidaro.
- Krowll Bakugan form seems to resemble Scorpion in a way since they are both based on insects, they have three clawed hands/feet, and they almost have the same battle cry.
- Krowll is the only Bakugan that was used by members of both Team Anubias and Team Sellon.