CB Chara Wars: Ushiwareta Gag is a cutesy two player beat 'em up from Banpresto. Like River City Ransom, it features super-deformed characters, dialogue, and an open world you can explore and fight in at your leisure. However, it lacks RPG elements and its gameplay is extremely simplified.
For a less horrible alternate River City Ransom-style game, try Konami's Ganbare Goemon series.
This game has trees that resemble women.
CB Chara Wars is just terrible. It's a River City Ransom knock-off with even less depth. The brain-dead combat, grating sound effects, tiny sprites, and miniscule enemy waves make this game a complete joke. Worst of all, enemies become stunned yet invincible during combat, making things slow to a crawl. It is super weird at least.