How was the Voice in "Lulu mix" made?

When she said "bumble-bear," "lady bug," and "Come back soon," I have no idea how those were made; I couldn't really comprehend how those were made from what was currently available in Lulu's voice. Either there was an uncredited voice actor, the mixing was made VERY well, it combines other Voice overs from Lulu (like other languages), or more lines are on the way for her... or something different?

Fun video though [slayer-pantheon-thumbs]