

I can attest to many of the other games mentioned, but I haven’t seen Radiant Historia Perfect Chronolgy mentioned yet. It’s my favorite game on the 3DS. It does feature time travel as a mechanic and has unique battle mechanics.
If you’re up for SRPGs too (S meaning strategy), I wholeheartedly recommend Shin Megami Tensei Devil Survivor 1 + 2. The first one is overall a bit better.
Sunbreak? Yes. Not only did my playtime at least double with the DLC, the game is also really easy before that point. Monster Hunter has three difficulty rankings for quests: Low Rank, High Rank and Master Rank - the last one being the DLC. You get new monsters - inlcuding armor sets, a whole new post game, new upgrade mechanics, new maps…