1. Naruto's conversation with Sasuke, before Sasuke dies
2. Sasuke vs. Naruto Valley of the End; Cursed Seal Level 1 Sasuke about to hit Naruto with chidori, Naruto's thoughts to himself about being Sasuke's friend, and about how lame he must be if he was the only one who thought they were friends.
3. Naruto's inside illusion of chasing Sasuke, telling him to stop, and sliding past the Nine-tail's cage; Naruto's transformation into Kyuubi 4-Tails while fighting Orochimaru
4. Sasuke's speech to Naruto about revenge being everything to him, even if him or the entire world was sacrificed for it.