Sergeant Keroro The Super Duper Movie 3: Keroro vs. Keroro Great Sky Duel

Fuyuki Hinata and the Keroro Platoon are exploring an abandoned temple in the mountaintop ruins of Machu Picchu in Peru. During their adventure, Keroro triggers an ancient trap by accident, revealing a hidden chamber with a large blue crystal resting on a pedestal. A key is embedded in the stand, and when Keroro leans on it, the room suddenly comes alive-machines whir to life, and the whole temple begins to shake. Panicked, the group rushes for the exit. As they flee, Keroro drops his Kero Ball, and Fuyuki briefly spots a glowing girl standing in the chamber. He tries to tell the others, but they’re forced to escape before he can explain. Outside, the mysterious girl watches them go, her glowing wings unfolding behind her. Meanwhile, deep inside the chamber, something stirs within the crystal...