It should be available from a net-trader or shop in the Net, either Yoka Square or Beach Square. It might also be available from a bugfrag trader, but I don't think so.
AntiNavi M is in a blue mysterydata in Secret 2 behind a monolith on a hidden path.
Only in Blue, and a reward for successfully completing the Serenade Time Trials. These will be available after you defeat Serenade.
you can't. Dark aura can only be gotten in megaman battle network 3 BLUE. You get it by doing all the time trials in secret net. In WHITE, you get the Serenade chip.
no you can only link megaman games together if it is the same number like megaman battle network 3 blue to megaman battle network 3 white
There is an Aura F chip in Undernet 6, behind Bubbleman's security cube. Lifeaura D chips can be obtained from the Scuttle family of viruses, when you get lucky. You receive the Darkaura A chip when you complete the Time Trials.
Chip number 132 is Snake, and can be obtained from Higsby in the form of Snake R after completing his jobs.
hit start go to megaman then go to navicust
Go to GameFAQs; they have a chip list FAQ.
google them even though i dissaprove of cheating in megaman games
There is a Sanctuary chip located deep in the Secret Area. Other than that, you'll need to abuse chip traders and BugFrag traders, or just trade it from a friend. Or, cheat.
The styles in MegaMan BattleNetwork 3 Blue are: Custom, Team, Guts, Shield, Bug, and the Blue version exclusive Shadow. They will be in tandem with the four elements fire, water, electric, and wood.
Trade.