Sasuke's 1st story stage in SB3: Utage, translated into English.
This stage is basically making the battle in Motonari/Yoshitsugu's opening CG playable, which is pretty cool. I believe the first time I played this, I missed fighting Kotaro since I just never found the catapult that leads you to him. This time, I made sure to look up a wiki online and followed the specific path it recommended to find him. Turns out there's catapults all over these ships.
Doing it in this order seems to have jumbled up the dialogue a bit, so there's a line of Sasuke realizing the battle is a sham sort of early on, but then later he has lines about stuff like wondering why Mitsunari isn't there, despite already establishing why that is.
The fight with Kotaro was pretty fun, we kept dodging each other and he kept ending up behind me to attack from off-screen like a surprise. That could just be coincidence, but the AI for enemies are changed sometimes in these new stages. Also the cutscene after defeating Kotaro is probably the coolest cutscene in the game. It's a shame it's entirely missable. I definitely recommend checking it out at 7:10.
Sasuke is also pretty fun to play as, really easy to build up combos with him and pretty simple to use. You can hold Square during his S-string to have his shadows knock enemies towards you, or do it at the end of the S-string to do a powerful finisher. Some of his attacks chain into air combos and can be used mid-air as well.
Also I have no idea why they went with a Matrix-style opening for Sasuke's intros. It's neat though.