Monster Force is a top-down arcade-style action game that takes place in various locations throughout Monsterland. You can select which monster you'll play as: Frank is slow and strong, Drac is your middle-of-the-road monster, and Wolfie is fast and furious. I found the game to be the most fun with Wolfie as he's not only the fastest, but his attacks seem stronger too (even though the game says he's the weakest of the lot). As you make your way through the levels, Frankenstein's assistant Igor, will give you tips. In general this game reminds me a lot of Zombies Ate My Neighbors for the SNES.
Your monster has three different types of shots to take on the pumpkin army. Certain enemies or obstacles require a particular type of shot to be destroyed. In addition to these attacks you also have a pretty big arsenal of special weapons and power-ups to choose from. These items can be picked up in the field or bought from Igor between levels if you've acquired enough atoms, the currency of Monsterland.
Like most games in this genre, this one has its share of bonus levels and boss monsters. Where it might be a little different is that you can replay any level you've already beaten. This actually increases how replayable the game is because each level has certain criteria for achieving higher ranks that may unlock some secrets later on. Replayability is also increased due to 'Multiplayer Madness.'? In order to play it you'll need two GBA's and two cartridges.
The graphics and sounds are what you've come to expect of a GBA game these days. There's nothing technologically jaw-dropping here but the graphics and animation are nicely rendered. Likewise, the sounds are fitting for a game of this type'a little spooky to give you that Monsterland feel but upbeat enough to follow the pace of the game.
Monster Force is the kind of game you want if you're in the mood for an old-school arcade-style action game or if you have a thing for classic monsters. The levels are well rounded with simple puzzles to solve and lots of pumpkin smashing. In addition I found Monster Force to be somewhat addictive because the game challenges you to replay levels for higher rank. With it's solid gameplay and nice graphics and sound this game is a winner all around for fans of the genre.