Finished both seasons last weekend for the 2nd time.
I wish they made an OVA or an R3.
Lelouch probably survived and is living with CC or something.
he took CC's mortality before he was stabbed, they are both alive on the cart in the end and going out to some farm like out country area i believe to live in peace.
Lulu became a Jesus.
he was a martyr
he sacrificed him self for our sins, leading to unity of the world
and then revived himself from death
idk if u could call it an OVA.... I say more like a picture drama. IT;s like a sound episode with few pictures to add in. Also there was one fan dvd before R2 started to pick the best scene of R1, and random stuff buy i'm pretty sure that there wasn't any actual OVA.. also FYI Code Geass it self is OVA...... more like ODA XD <<< no one uses this.