Near the arena, there's a billboard featuring Ratchet and Clank from the Ratchet and Clank series.
The technology in Jak II was largely reused from the previous game, particularly in the technology that allows the game to run smoothly and without loading times. However, a notable change is the improvement in the charts. The character models are more detailed, with a much larger number of polygons; while Jak's character model was made of 3,000 polygons in The Precursor Legacy, in Jak II, his film model has almost 15,000
The second game without Loading Screens
In Ratchet and Clank 2: Going Comando, Ratchet can be see playing Jak 2 on the title screen
Jak II is the only game in the series in which versions for English-speaking regions include the Japanese and Korean voice track.