Pokemon Prism is one of the most popular ROM hacks out there, not only because its been around for a while but because it is one of the best Pokemon ROM hacks out there. One which you can just relax playing through.
This is one of the best Pokemon ROM hacks for those that want a simple, and easy to understand story line. They have even added a day/night system which triggers events based on the time and location you are in, making the game feel random in a very natural way. The world is filled with over 380 Pokemon for you to catch, new mini games, new moves, items, HM’s and a wide number of new characters which you’ll come to love/hate. The ROM hack features a never seen before story line, new events featuring a wide number of legendary Pokemon such as Mew, Kyogre, Rayquaza, Shaymin and more. It’s your job to close the portal before it’s too late, all while training your Pokemon and coming up against Team Magma and Aqua who are trying to catch legendary Pokemon to take over the world.
Once the epic battle has finished they leave behind a open portal between the Town World unleashing Giratina into the region which comes with a lot of problems. Pokemon Flora Sky starts off with a battle between the legendary Pokemon Dialga and Palkia.