Alright here's a post with the new dungeons in CT DS in a more user friendly way
New dungeons
- Arena of the Ages
Something like Pokémon, you choose an element monster, Fire, Light, Shadow, or Water, and you can train it and fight other monsters with it. Accessible from the End of Time and Title Screen, from the first time you save your game.
- Lost Sanctum
Appears when the Black Omen rises in 65,000,000 BC and 600 AD. It involves helping Reptites with several errands. I haven't explored it fully yet so there may be special stuff left there.
- Temporal Vortex
It appears in 12,000 BC, 1000 AD, and 2300 AD after you beat the game once. From then on it's accessible on all of your savegames. You will make your way through several old and new maps and meet old and new enemies, most notably of which is Dalton. He will reveal his scheme of how he desires to raise an Porrean army to overthrow Guardia. After that you will fight a clone and one of your character's stats will be upgraded. I don't know alot about this dungeon yet but in the next days I'm gonna search through every single little tidbit of it in case there are more plot twists.
@ Pyt: lvl 99
@ Shin: Please, if you can, try to make a video. I know the dungeon is confusing but if you have time, explore it with me.