Anime that references or crosses over with other anime

So what anime have you seen that bring up other anime?

Examples:

bakemonogatary
SGT Frog
Good luck Girl
Gintama
Assassination Classroom
Love Tyrant

https://myanimelist.net/featured/142...y_Have_Missed_





https://s1.dmcdn.net/v/LFNiA1PY1-yGUqd-o/x1080

https://i.ytimg.com/vi/_Zb-SuPnrqM/maxresdefault.jpg

https://i.ytimg.com/vi/pbLLv81lDRU/maxresdefault.jpg

https://www.youtube.com/watch?v=7IaUp1iL42Q

https://www.youtube.com/watch?v=C_NokInKpPE

https://www.youtube.com/watch?v=q-7Sg8qomEE

https://www.youtube.com/watch?v=QYcFxOhCjiU

You don't see them, but you do hear them. Isaac and Miria, from Baccano, do have a cameo in Durarara. They join the dollars.

Dragon Ball reference in Bakemonogatari:

https://www.youtube.com/watch?v=GqmwdlNKi0Y

Reminds of of Who Framed Roger Rabbit


https://bakemonogatari.fandom.com/wi...ogatari_Series

https://www.youtube.com/watch?v=aCMkJgALntY
https://www.youtube.com/watch?v=y77Uj1-bVaI


megas XLR did a LOT

https://64.media.tumblr.com/773a3321...zbrgo1_640.jpg

https://i.kym-cdn.com/photos/images/...47/376/ca4.jpg

https://www.youtube.com/watch?v=Ow0lnI1543w