First, defeat Alpha. Then, collect the hammer from Undernet 7. Go to the Secret Area through the Undernet server. Make your way through the Secret Area, defeating DarkMan and YamatoMan. Serenade will be in Secret Area 3 at the top of the huge slope. You must have all 200 standard chips before his door will open.
It seems impossible doesn't it? But . . . well, it's just really hard. Or, to be more accurate, it takes a really LONG time, making it nearly impossible to S rank him. What you need to do is basically just wait, and Dodge his attacks, until he puts his hand out, a green burst of energy comes out, and your squares get riddled with hits. At that point, hit him with something like 2xhero or Masterstyle (2xhero preferred). Repeat this process, and eventually you'll kill him. More of a stamina battle then anything else.
By defeating the life virus in Wilys Lab
i dont not if this is right but you must beat bass in nebula hole 6
Supposedly they are about equal, although in MMBN 3 Serenade tells Megaman (after he's been defeated) that he beat Bass (known to Serenade as "Him" and "He"), although it took him several days to vanquish him. But . . . Bass is stronger. No question. That's why he's the FINAL boss in MMBN 3 and not Serenade. Though it can take longer to defeat Serenade, it is easier.
Serenade is the king of the Undernet. He is found in the secret area, the only way you could battle serenade is by getting all 2oo standard chips Serenade is also Mamorou's navi. Since his father created the undernet, and since Serenade (S, for short) is the king, we can assume that Mamorou's father gave him S as a navi. Also, on the side of Mamorou's wheelchair is S's symbol, meaning that Lan and Mamorou can have the netbattle that Lan promised him.
Before getting into this, beat Serenade, otherwise it's pointless. Having done that, merely jack out and back in and there will be purple navis all over the place (the Secret Area) asking you to do stuff. Like kill navis with extra folders in short periods of time.
Just follow the storyline. Essentially, beat Alpha, and you'll "beat" the game, although subsequently there will be a lot of extra material. This question is better resolved by visiting a walkthrough, for which I recommend using gamefaqs.com
You have to have beat alpha and you need 100 chips in your library. then you go to where you got the gigfreze program and press a on the giant hole
If you mean hate, then I can explain why. People hate Megaman Battle Network 4 because in order to beat the game, you have to start a new game (a harder level) to get souls and chips you need. That is very annoying and it's just terrible. Chips, libraries, and other important things aren't lost when you start a new one, but you have to battle the boss and final boss 3 times is very just horrible. So, some people just skip that game and some don't. Even if it's bad, it's still a Megaman Battle Network game.
random battle in astro waves
you beat crimson dragon or if you want full completion you beat Sirius and get all battle cards
You have to beat the number 1 first with a single blow having the same attack power as it's HP then the number 2 will turn to number 1 and just keep doing it
get the chip metalstage so he doesnt break the panels. that helps a lot. oh and make sure you shoot him when the light on his chest is red... and dont die