In Caravan Mode, you have to score 150,000 points in 5 minutes. Here's how I did it:
-Select Chi-Chi & Nene as your character, they are the twin girls third from the left.
-Begin the match. Unfortunately like some of the other ACA NEOGEO games your opponent is random so you can't select a pushover for an easier beginning. Whoever you fight, you are going to spam "Toward Your Opponent + B Button" into oblivion. This will make her do a double hit kick at your opponent, and eventually you'll corner them and just keep doing this until you win the round.
-Sometimes if you're close enough the girls will do do a throw that will cause your opponent extra damage. Between this and the kick spam hopefully you'll be able to reel off a few perfects because that'll give you a nice score bonus and speed things up.
-You definitely want to try for perfects because the 5 minute window is pretty narrow here. A strategy I did was restarting until I got matched up with Susano, Gokuu, or Igret because they yield perfects way easier than anyone else.
-Just keep at it and you'll get the 150K after a few attempts. Good luck!