Jak 3

Story related and cannot be missed.
You will face this boss after blasting through the flying citadel. Here are the steps to defeat this boss:
1. He will throw bombs at you; simply dodge them, very simple.
2. Enemies will come out, defeat them all.
3. When the spinning floating things come out, shoot the one that is below where the boss is hiding. If you hit the right one, it will fly up into the air and hurt the boss.
4. After the first time you damage him, the bombs he throws will have a shockwave; jump just before they hit the ground. He will also throw a bomb that scatters, that one will take out the platforms below you, though the bombs he throws after the scatter won’t have a shockwave.
5. Repeat the steps above, simply using step 4 instead of step 1 for all the waves after the first. After you have damaged him 4 times, he will be defeated. Watch the cutscenes and get your trophy.