Fans of the Cartoon Network's Powerpuff Girls series will ultimately be disappointed by Bad Mojo Jojo since the game is extremely simple and boring. Not even the biggest Powerpuff Girls fan will find excitement in the monotonous tasks of collecting trinkets and avoiding water pits in this side-scrolling adventure game.
You play through the game as Blossom, the Powerpuff Girls' fearless leader, who is on a quest to stop Mojo Jojo, one of the trio's archenemies. Along the way, you pick up trinkets, which are scattered throughout the levels, and avoid Mojo's henchmen, who try to impede your progress. Defeating the enemies simply requires a couple of well-placed punches or kicks, and you can freeze them in their tracks for a brief period of time using the power-ups that are scattered about the levels. You will also find special trading cards hidden in the levels that you can trade with other players using the Game Boy link cable.
Playing the game is pretty boring since the majority of the gameplay consists of guiding Blossom from one useless trinket to the next. The only skill involved in this is avoiding the pools of water - if you fall into one, you'll be sent back to the beginning of the level and you'll lose all of the objects you've already collected. This setup, combined with the fact that Blossom can only fly for a short period of time, makes for a completely frustrating situation. When you finally reach the end of a level and face off against one of the boss characters, the battle is a simple exercise in repetition that gets old extremely quickly.
Visually, the game isn't very exciting. The levels and characters are extremely simple. Blossom and the other two Powerpuff Girls are extremely small, and they aren't very detailed. The enemy characters are a bit bigger and look fairly decent. In the audio department, the game has some decent music and a few voice samples of the girls yelling when they get hit and attack.
In the end, whether you're a fan of the series or not, you'll find that Powerpuff Girls: Bad Mojo Jojo is just too simple to hold your attention past the first few levels. Even younger players will find the game to be little more than an exercise in frustration. Hopefully, the next two Powerpuff Girls Game Boy Color games will offer something more exciting and challenging than a quest to collect some useless items.