Well, this game is... Bomberman, nothing new, but nothing less either.
The graphics are pretty decent for being one of N64 first games. Not the best, but pretty good.
The story mode is nothing great, if your playing by yourself it can be used as a practice for multiplayer, and a few puzzles thrown in can help gameplay, but nothing major, gets tedious and boring fast.
The multiplayer is what makes this game. 5(i think) different levels that all interact with you, adding to the challenge. Up to 4 players duke it out by throwing or kicking bombs at you opponents. Powerups appear from little structures on the map that you destroy which can aid you in the destruction of your foes, which can be strategically used to increase gameplay.
Now, if the 4 or 5 boards start to become tedious, theres a way to unlock 4 or 5 more, which are pretty fun to play on. go to (i forget which) either the main screen or the options menu, and repeadetly hit the start button VERY fast, you'll then hear a little chime when you've unlocked them... the only bad thing is you have to do this everytime you turn the game off :(