Mega Man Battle Network 4 takes Lan and Mega Man deep into tournament style fighting as they continue their crusade to rid the net of evil viruses. but each time they fight, they will be tempted by a powerful "Dark Chip" that can help them out of precarious binds. Red Sun and Blue Moon each feature different storylines, 6 unique enemy souls, different tools and different battle strategies. Players can link between the two games with two Game Boy Advance systems to swap special programs and chips, and to ba...