By putting any GBA Mega Man Battle Network game into the GBA slot on your DS, you can unlock a sequence of events (after saving your game) where you can meet up with Mega Man.EXE.
To add Kizamaro to your Brother Band, do the following (after beating the main quest). Speak to him in Kodama Town, and then head to the gym at school. Head into the network via the Piano in the gym and talk to Jamminger within. You’ll begin a battle sequence that is many battles long, but upon winning, you can talk to Kizamaro again and add him to your Brother Band.
As you accomplish certain feats in the game, the “New Game/Continue” screen will change slightly. Below is a list of what must be done in-game in order for you to receive these so-called Star Rewards. By getting them all, a super-hard version of the final boss will also be unlocked.
If you compose an e-mail in-game (by sending it to yourself via the proper satellite) with certain contents, you can unlock various cards. Simply put the word “Cipher” as the e-mail’s subject, and then the password for the card you want in the e-mail’s body. To make the card appear, exit back to the main screen and then look in your inventory and the card should be there.
Read the cheat above about Cipher Mail and how to insert the following passwords.
Read the cheat above about Cipher Mail and how to insert the following passwords. (Any “|” in the password to be inserted into a Cipher Mail arrangement represents a line break, and should not be inserted into the code itself.)
To get the BN (Battle Network) Blaster, put any Mega Man Battle Network GBA game into the GBA slot on your DS. Then head to the doghouse in Echo Ridge (in EM Wave form), where you will see a wave ball. Go up to it - someone will say some data was stolen. If you head to Vista Point and beat Jammer in the computer system and then head back to the wave ball you earlier found, Mega Man.EXE will take the data you retrieved and give you the BN Blaster in return.
There are three optional bosses in the game, listed below
Cancer - Talk to the red-headed boy in The Wave, and then fight him in the Amaken Foyer EM Road.
Thunder - Talk to the ghost after beating the game. Fight him in the City Dump EM Road.
Woods - Talk to him in front of the stage at Nancy’s, then fight him in the EM Road of the stage.
The Card Traders in the game have a set order for the cards they dispense, so giving them better cards will likely not affect the cards you get back from them. It’s a progression.