Hey everyone,
I know there is solutions for this on different sites but I would like to reiterate it here on TT. Now if you want to play this game legit on Titan mode then the solution is not for you and I suggest you turn back now. If you would like to make this trophy ESPECIALLY easy then let's proceed with the steps on how to do so.
1) complete the game on any difficulty as well as "Challenge of Olympus" of going for the Platinum trophy every trophy should be gotten except for "King of the hill" and "Unhuman".
2) Start combat arena and choose Titan difficulty, with that make sure to chose infinite Health, magic etc.
3 For the enemies choose Gorgan and Gorgan serpants
4) once in the arena your goal is to continue jumping because since you have infinite health they can't kill you unless they turn you to stone in mid air.
5) Let them kill you like so until the game gives you an option to switch to easy mode, at this point press NO. You will be sent to the main menu.
6) Start new game in "Titan" and watch as you have unlimited health enjoy being a complete God and beating the game with ease, with that you can enjoy a gold trophy and hopefully a platinum to go along with that.
If you have any questions about the method or anything missing in solution please comment as I would love to hear feedback and give me a thumbs up as well.
Michaelthedude