(posted: 11/19/2009 11:28:00 AM)
There is no one easy way but you can make it feel easier by following strategies:
1. Regen magic glitch when you get Typhon's Bane, check it on youtube. This glitch gives you infinite magic from this part to till you get Cronos Rage. This will make Theseus easy as you have infinite bow shots.
2. Orb farming right after you get Typhon's Bane. Rake up 2000hit combo and then restart. Use it to get enough red orbs to power up your blades and other weapons. Takes time, but grinding pays.
3. Check youtube for High Jump glitch. If you can pull it off, you can use it to skip lots of tough fights like spiked cieling with skeletons, Fire Minotaur inside Atlas etc.
In fact there is a glitch FAQ for God of War II which lists many useful skips and glitches that make Titan Mode easy.