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The game is very deep for an older game. You can choose between 3 different play modes; Single player story mode, multiplayer battle mode, and Computer/Human player battle mode.
Single player story mode is very fun and pretty long. There are 8 worlds you must bomb you way through. Each world has 8 levels each. After you complete those 8 levels you will battle against the Boss of the world who can be quite a challenge. After you defeat the Boss you can travel to the next world and fight your way through that one. Each level has a hidden upgrade in a block, if you block up that block you can aquire the upgrade. There are many different kinds of upgrades, anything from faster speed, to bigger bomb blasts, or more bombs you can drop at one time. Very cool. Also, the story mode is presented kinda like Mega Men as far as how you will see the end Boss of the world before you start so you know what you will be up against when you get there.
Multiplayer Battle mode is great fun. You and up to 4 other friends can battle it out in any one of the 8 worlds you choose. This multiplayer is totally adictive and competitive and really never gets old.
Computer/Human Battle mode is just like you other battle mode, but if you do not have 5 people to play you can choose to add computer controlled players for a total of 5 players at one time. This is very cool because just you and one friend battling it out is not much of a challenge compared to you, a friend, and 3 computer controlled players. Awesome.
The game is great too because you can save this game anytimes during play and continue your story mode later. There are 3 save slots and you can also choose you save and load with a password if you want.