Ep. 30: Marucho faces his past self in a battle that helps him accept his difficult history and friends.
Aired on October 25, 2007

30
Marucho is sent to a test location where he encounters an ancient Aquos soldier named Frosch. After providing water, Marucho and Preyas learn Frosch’s identity and engage in a battle where Frosch uses a clone of Marucho as a partner. Marucho realizes this opponent represents his past self, who obeyed his parents to make them happy. Understanding that he must accept this history, Marucho sends Preyas into battle. Preyas evolves into Aquos Preyas Angelo, who possesses both Aquos and Haos attributes. Following a victory, Preyas reveals a second form, Diablo, which adds Pyrus attributes. Marucho defeats Frosch, makes peace with his past, and is returned to his friends by Frosch, who acknowledges them as new Aquos soldiers.
Episodes
- Ep. 26 · Runo quits Bakugan while Masquerade defeats multiple brawlers and evolves Hydranoid
- Ep. 27 · Dan pursues Drago into the Doom Dimension after losing to Masquerade's evolved Bakugan.
- Ep. 28 · Brawlers depart to rescue Dan and Drago from the Doom Dimension while facing Masquerade.
- Ep. 29 · Brawlers meet ancient warriors who demand battles to escape the Doom Dimension
- Ep. 30 · Marucho faces his past self in a battle that helps him accept his difficult history and friends.
- Ep. 31 · Shun and Skyress encounter a mysterious girl in an empty town who challenges them to games.
- Ep. 32 · Runo faces a mystical forest trial where she must admit her bond with Dan to pass.
- Ep. 33 · Dan and Drago face Apollonir to free the Brawlers from the Doom Dimension
- Ep. 34 · The Brawlers Return to Earth While Masquerade Seeks to Evolve Dual Hydranoid