Shin Nekketsu Kouha: Kunio-Tachi no Banka is the final Kunio brawler released for the Super Famicom. It's a pseudo-sequel to River City Ransom with similar combat and plenty of dialogue. However, you gain new attacks at set points in the game rather than collecting money and paying for them. Also, you can fight as Kunio and Riki's girlfriends, and switch between them at will.
Check out the fan translated version of this game at romhacking.net.
This is the first Kunio game to have female combatants.
Tachi no Banka is a disappointingly "streamlined" pseudo-sequel to River City Ransom. You gain new abilities and characters, but only at set points in the completely linear story. Its combat is pretty fun, but it's still too simple for a Technos game, and the graphics and sound are both crappy. Plus there's very little enemy variety.