Add hints to moves never explained in the game, and port some stuff to Jak 3.

[wojtulace]

Display hints at some point in the game about certain mechanics available to the player. If you can force the player to perform them, like the QuickShot hint during GunCourse mission in Jak2, that'd be even better. Display hints for:

Quick shot: punch and then fire weapon instantly (this one is already explained in the game).
Quick shot from afar: jump, spin and fire weapon before touching the ground.
Shoot around: jump, then spin and fire at the same time.
Quick aimed shot: shoot while rolling or roll jumping.
Better high jump: jump exactly as you land from a roll jump. It gives you a lot more height than a normal high jump, and it's way faster.
Hide from guards: walk towards a wall while the guards aren't looking.

Some stuff from Jak 2 to Jak 3:

Port dark jak guard comments.
Port the zoomer key sound.
Port Dark Giant as a secret.

[wojtulace]

One more idea: make the flying robot speech, that appears before many missions, play through the controller speaker. I believe that'd be very immersive.