The game has good and very satisfying gameplay like all Tekken games, it is very fun to hit and defeat rivals.
The controls are responsive and comfortable for a 3DS.
The graphics are pretty decent for a Nintendo 3DS exclusive, they don't exploit its features, but they look pretty decent.
The problem with the game is that it has a small number of single-player game modes, only having 3, Special Survival, Versus Battle, and Practice; The survival mode is entertaining, as it is quite fun to chain blows to your rivals while being careful not to be attacked by them, and when you complete the challenges in this way they give you cards as rewards, which you can see in the Tekken Cards section.
The problem with survival mode is that despite its replayability with cards, it ends up becoming very repetitive over time.
And yes, you need the arcade mode, a must in any fighting game.

Something great about the game is that it comes with a fully animated movie, a pretty cool detail, but of course, that doesn't affect the quality of the game itself.

The multiplayer mode is entertaining, but the problem is that you can't choose a different character than the one you used after finishing a battle, but rather you have to exit the mode, put another fighter in your game profile, and re-enter. That actually seemed quite stupid to me, and even if we are talking about the 3DS, in other fighting games on this console you could choose a different fighter after a battle, without the need to exit multiplayer mode.
I don't deny that Tekken 3D: Prime Edition's multiplayer is fun, but I personally disliked that detail.


In general, the game is good, and if you are traveling or away from home, it is a good option to play on your 3DS/2DS, and if you have someone you know with the same console and the game, I assure you that they will have fun with it multiplayer mode, despite the problem I mentioned earlier about this mode.
What I would have liked this game to have are more extra modes for a single player, since it is very lacking in this.