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It's been rather quiet after Lan and Mega Man defeated the WWW in Mega Man Battle Network 3. Little do they know that they're about to embark on yet another adventure. An asteroid has been spotted in outer space which is heading towards Earth, and scientists are planning to destroy it with a giant laser. In addition to this, a mysterious Navi called ShadeMan is terrorizing the Internet, sucking the life out of other Navis, much like a vampire. Can Lan and Mega Man stop this new threat?

Mega Man Battle Network 4 is an RPG-like game, and a continuation of the Battle Network series. You play as two characters - a young boy, Lan, in the real world, and a Net Navi called Mega Man on the Internet. Lan can talk to people and interact with the real world, however, when he 'jacks in' to the Internet, Mega Man takes over. In addition to interacting with Navis on the net, Mega Man also encounters random viruses and battles them in a mix of turn-based and real-time battle.

A new feature of Battle Network 4 is the "Soul Unison" feature - as players progress through the game, they can defeat certain Navis and earn the ability to merge with them to become more powerful. The catch with this is that the Soul Unison only lasts for three turns, and that a particular Battle Chip is required to perform it.

The Soul Unisons that you acquire through the game are specific to each version - to get them all, you must link up with a copy of Mega Man Battle Network 4: Blue Moon. You can also trade different Battle Chips (some are exclusive to particular versions) and Net Battle with a friend.


Mega Man Battle Network 4: Red Sun Game Boy Advance Pause Menu
Mega Man Battle Network 4: Red Sun Game Boy Advance Lan picks up his PET with Mega Man to start the game
Mega Man Battle Network 4: Red Sun Game Boy Advance ShadeMan consumes the life out of other Navis
Mega Man Battle Network 4: Red Sun Game Boy Advance Lan's friend, Dex's room.  What a mess!

Alternate Titles

  • "洛克人:战斗网络红日版" -- Chinese spelling (simplified)
  • "Rockman EXE 4 Tournament Red Sun" -- Japanese title
  • "MMBN4 Red Sun" -- Informal name

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Critic Reviews

Nintendojo 2004 8 out of 10 80
NintendoWorldReport Jul 25, 2004 8 out of 10 80 Sep 30, 2004 15 out of 20 75
N-Zone Oct 21, 2004 74 out of 100 74
Game Informer Magazine Jun, 2004 7 out of 10 70
GameSpot Jul 13, 2004 6.8 out of 10 68
1UP Jul 06, 2004 B- 67
IGN Aug 19, 2004 6.5 out of 10 65
Game Freaks 365 2004 6.4 out of 10 64
GameSpy Jul 04, 2004 3 Stars3 Stars3 Stars3 Stars3 Stars 60


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Ben K (23053) added Mega Man Battle Network 4: Red Sun (Game Boy Advance) on Aug 08, 2006
Other platforms contributed by Michael Cassidy (17440)