Kanon (2006 anime):
- Makoto struggling to say Yuuichi’s name but finally managing to do it
-
Makoto and Yuuichi’s “wedding”
- Everything about Makoto, really
- Little Mai making the snow bunny zoo for her mother
- Shiori and Kaori finally becoming close
-
Kazuya’s death
-
When Ayu disappears and Yuuichi thinks she’s dead
Air (anime):
-
Michiru’s goodbye to Minagi
- Misuzu calling Haruko “Mama” after she regains her memory
- The “Goal!” scene
Clannad (anime):
- Sanae crying because she can’t see Fuuko anymore
-
Kouko and Yuusuke’s wedding
- The teddy bear scene
-
Shima’s goodbye to Misae
- Basically every scene with Tomoya and Ushio, especially when she cries in his arms and when he tells her about how he met Nagisa
- Sanae finally crying for Nagisa after five years
-
Ushio’s death (quite possibly THE most painful scene in any Key work ever)
-
Tomoya and Nagisa reuniting, especially when she tells him she’s glad they were able to meet
- The ending, when Chiisana Te no Hira plays
Planetarian:
- Yumemi remembering all her friends at the planetarium before they died
-
Yumemi’s death
Little Busters! (original VN):
-
The night before Takuya dies and he’s talking to Komari for the last time
- Haruka and Kanata finally acting like loving sisters again
-
Kurugaya’s disappearance
-
Miles’s death
- That One Scene in Refrain (you all know which one I’m talking about)
-
Rin saying goodbye to all the girls
- “It’s not enough.”
Angel Beats!
-
The montage of what could have happened if Hinata met Yui while they were alive
- Yuzuru and Kanade telling each other they love each other
Rewrite:
-
Chibimoth’s death
-
Shizuru’s diary
Charlotte
- Honestly just the very end of the last episode; nothing else made me cry
At least, those are all the parts I distinctly remember crying at. There are probably waaaay more that I’m forgetting.