It's the highlight of GBN's anniversary event, the Gunpla Battle One-Day Battle Royal! Participants are selected from the Divers who played most passionately this season, and they're fighting in machines randomly assigned mainly from those Gunpla ranked highest by all Divers in the Great Gunpla Ballot! Now the final round is about to begin, with the tough fighters who've won their respective blocks! There, an unpredictable, super special, never-seen-before Gunpla dream battle will... START!!! (Source: AniDB)

The Layzner OVA serves as an alternative version of the TV series. The first episode, titled Eiji 1996, recaps the first part of the series (episodes 01-24). The second episode (Le Caine 1999) takes place after a time skip, and contains episodes 26 through 37 (episode 25 of the TV series, being a recap itself, is skipped here). The final episode, Seal 2000, is an expanded version of the final episode of the TV series (38) and features new animation and a longer epilogue.

The spring has come since Yuuichi reunited with Ayu, and lives of all major characters are back on track. When Mishio visits Makoto's birthplace, however, a miracle happens before her eyes. (Source: ANN)

On their way home from high school, Tamahi and some classmates are shocked as they witness someone fall from the rooftop of nearby apartment. Panicked and confused, they rush to the building only to find it deserted. As Tamahi wonders about this, she has the uneasy feeling they are being watched. What is the strange presence around her... (Source: HIDIVE)