Open Battle in Mega Man Battle Chip Challenge
From The Rockman EXE Zone Wiki
Open Battle (フリーバトル Free Battle) is an extra mode consisting of marathons battles in Mega Man Battle Chip Challenge. This mode is where any remainder Navi Chip that weren’t dropped in the story can be obtained.
In Open Battle, fights divisible by 5 are fixed, while the rest are chosen randomly from a pool of foes.
- DenCity Open Battle - unlocks after first tournament
- Length: 10 Battles
- Yumland Open Battle - unlocks after Class D
- Length: 20 Battles
- Netopia Open Battle - unlocks after Class S (beat the story)
- Length: 30 Battles
- HackersN Open Battle (Hacker's Net) - unlocks after Class Z (beat the post-game)
- Length: 100 Battles