October 14, 2003
There is a billboard featuring Ratchet and Clank on it in the Main Town, Haven City.
November 9, 2004
Ratchet and Clank both feature as civilian targets in their own "Ratchet and Clank gun courses".
Ratchet & Clank: Going Commando
November 11, 2004
While on the main menu, Ratchet will play various video games. If you wait long enough, he will eventually play Jak and Daxter: The Precursor Legacy.
In Clank's apartment, Jak and Daxter appear on the TV.
Jak and Daxter appear on some billboards in Allgon City, Damosel.
Jak X: Combat Racing
October 18, 2005
Ratchet appears as an unlockable racer. To unlock him, the player must have a save file of Ratchet: Deadlocked on their memory card.
Clank appears as a vehicle customization item, a pennant, that can be bought for 40,000 precursor orbs in the secrets shop.
October 25, 2005
Jak (and a alternate red version of him) appears as a playable skin, in his Precursor Legacy attire.
March 13, 2006
A wearable Ratchet mask and Clank mask can be unlocked.
Jak and Daxter: Trilogy (Movie)
Daxter mentions Clank.
Ratchet & Clank (Movie)
April 20, 2016
Clank mentions Daxter.