Well, before I give you recommendation, I need to know what is more important to you, colourful, or epic.
There are a lot of games that are colourful, but at the sacrifice of "epic". And a lot of games that are epic as the sacrifice of colourful.
Some good examples of both would be:
Tales of Symphonia
The Tales games in general tend to be a mixture of both happy candy colours, and epic games with political conflict, bombastic Motoi Sakuraba tracks(the person who did the Dark Souls OST), plot twists, and of course epic standard jRPG endings.
DoDonPachi DaiFukkatsu
Cave games in general can be pretty colourful. But out of DoDonPachi, DaiFukkatsu and SaiDaiOuJou are in particularly very colourful in their balls of death. And it is also hard to get more epic than these two games.
There are a lot of games that are colourful, but at the sacrifice of "epic". And a lot of games that are epic as the sacrifice of colourful.
Some good examples of both would be:
Tales of Symphonia
The Tales games in general tend to be a mixture of both happy candy colours, and epic games with political conflict, bombastic Motoi Sakuraba tracks(the person who did the Dark Souls OST), plot twists, and of course epic standard jRPG endings.
DoDonPachi DaiFukkatsu
Cave games in general can be pretty colourful. But out of DoDonPachi, DaiFukkatsu and SaiDaiOuJou are in particularly very colourful in their balls of death. And it is also hard to get more epic than these two games.