I'm playing on the EU version on the PS2 and I've tried many MANY times on my first playthrough, but the skill point still remains greyed out (this skill point is in the final level Quodrona and requires you to "complete the enemy portion of level 10 in less than 1:45")
The FAQs all say to clear out all the enemies, warp to the start then run through to the end again and you'll get it - sadly it doesn't work for me even though I'm clearly making it within the time limit. And reading through past posts I see that I'm not the only one.
One person posted that he warped back and when he ran to the room where the robot nurses were, 2 more Ratchet clones attacked and he got the skill point after killing them. No one else seems to have repeated that success story though so its credibility is questionable.
Is my game glitched or am I doing something incredibly wrong? Any help will be appreciated.