Game Boy Advance

Mega Man Battle Network 4: Blue Moon

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Developed and published by Capcom, this is the fourth entry in the Mega Man Battle Network series. Players guide Lan and MegaMan.EXE through a tournament-driven story that unfolds across the real world and the network. The Blue Moon version features exclusive Navis, chips, and scenarios, while preserving the series' fast, tactical combat and collection-focused progression. Reception was mixed, but the game remains an important part of the franchise's identity.
Release Date
2004-01-01
Publisher
Developer
Plays
1

The game blends story exploration with grid-based battles. In combat, MegaMan.EXE moves within a six-panel field, dodging enemy attacks and firing Battle Chips drawn from a custom folder. Progress is driven by main story missions, network exploration, side requests, and a bracket-style tournament structure. Chip codes, elemental matchups, and folder composition all matter, and the Blue Moon version changes some exclusive encounters, rewards, and scenarios compared with Red Sun.

Lan Hikari

The human protagonist who operates MegaMan.EXE and advances the story in the real and digital worlds.

MegaMan.EXE

Lan's NetNavi and the main combatant in battles across the network.

Baryl

A major character associated with Blue Moon content and related scenarios.

AquaMan.EXE

One of Blue Moon's version-linked Navis and an important combat encounter.

Build your folder around a few consistent chip codes so you can chain attacks reliably. Learn enemy patterns before committing to aggressive setups, and use movement to avoid wide-area attacks. Keep recovery and defense chips in reserve for boss fights, and take time to explore network areas for HP upgrades and useful subchips. Blue Moon exclusives can make certain encounters and rewards more efficient, so plan your route around the version's advantages.

No cheats or unlockables available

Tips

A folder with fewer chip codes is usually easier to use consistently in battle.

Tips

Keep at least one strong recovery option for longer boss encounters.

Tips

Use panels, barriers, and movement timing to avoid damage before counterattacking.

User Reviews

The battle system is still inventive, even if the tournament structure can feel repetitive at times.

User Reviews

Version-exclusive content gives Blue Moon extra replay value for fans and collectors.

User Reviews

Longtime fans usually appreciate the chip building and fast combat, though newcomers may need time to adjust.

Comments

5/5
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