* In coded, when [[spoiler:Data-Roxas merges with Data-Sora]]. All his hurt memories start flooding into Sora, and we're quickly reminded of the sadness that was ''Days''.
--> "I see a place. A sunset. Comforting...but also sad. This is where I spent my first...and my last...summer vacation. Rest easy...Your hurt can be mine now."
** In the next scene, Data-Sora sees images of Naminé and Xion and can only manage to get out a "Something terrible happened, didn't it?"
** On the subject of ''Days'' in ''coded'', the opening of ''coded'' is a flashback of many different scenes from all the games chronologically before it. The scenes from Birth By Sleep, Kingdom Hearts, and Kingdom Hearts II are not obscured, except by the MatrixRainingCode. But when it gets to ''Days''... we're shown maybe a full second of scenes, all flashing by fast and obscured by static. [[FridgeBrilliance Because it was]] ''forgotten''.
** In the HD movie version, [[spoiler: Creator/JesseMccartney]] does a ''fantastic'' job of playing [[spoiler: Data-Roxas]] as completely ruthless and bitter. Considering what the character's been through, it's hard to blame them.
* For the HD remake, the reveal that Data-Riku [[spoiler: was corrupted by Pete is ''heart wrenching'' because it's more than clear he's in pain and struggling and Pete is extremely flippant about the matter, even using ElectricTorture to goad him on (with a just plain ''painful'' scream from Riku) when Riku won't fight Sora. Riku is in shock for an entire ''half minute'' after before he goes AxeCrazy. Riku's theme in the background really doesn't help the matter.]]
* Data-Namine's existence. She acknowledges that she only exists to pass along a message, and once that's done she fades away into nothing. To make it sounds even more sad, she even reminds us the "real" Namine has ceased to exist as of ''Kingdom Hearts II''.