This is how Digimon should be, HARDCORE training and a basic scheme, and not some kiddy storyline.
Only later stages of Digimon games became popular with a story line that apparently was used to attract more childrens.
Digimon World Championship is all about training your digimon, and pitting them in battles. No kiddy story lines to torture you, no quest. All you have to do, is to train your Digimon to be the strongest there is!
In battles, you don't get to control your Digimon, how they fight, is totally dependant on how you trained them before, which is how Digimon was supposed to be.
If you were the fan of the original Digimon, you will love this game, if you only started playing Digimon after they became like Pokemon, you may find this game boring.