More hints.
#34 This was the third game in this platformer series. Which wouldn't see a new entry until 2013.
At the end of this game the protagonist is separated from his friends.
#33 In this game the main character is killed off at the beginning
The main character is out for revenge.
#32 This game has a special mechanic that let's you turn back time.
There is a good amount of jumping and climbing.
#31 This game is the start of a new trilogy after the originals on PS2.
It is from the same developer as #30
#30 This PS1 platformer was the first in it's series. It had a stronger focus on platforming than it's sequels.
The setting is very fantastical and strange. The locations range from medieval fantasy to more modern and industrial