A bunch of Japanese text in the mix. Why? There's a website like Youtube (Stream videos) where you can write text at funny parts, like leave little notes and stuff.
YouTube - ネイティブみさお 【ネイティブフ イス×らき☆すた】 完成版 【コ 付き】
You'll see crap loads of "w"
"w" = "warosu" = lol, hehe, haha, etc.