Meet certain conditions in different games to unlock bonus games and interviews.

Extra	How to unlock
Akirea Nishino Interview	Collect 5 Yellow Stars.
Alien Syndrome	Reach Mission 3 without losing a life.
Altered Beast Arcade	Get 100,000+ points in Level 1.
Congo Bongo	Complete 1st level of Streets of Rage with all 3 characters.
Fantasy Zone	Get 80,000 points in Flicky.
Golden Axe Warrior	Use magic 10 times in Golden Axe 3.
Kazunari Tsukamoto Interview	Play Phantasy Star 3.
Kazuo Wakihara Interview	Get 20,000 points only on Easy Mode in Columns.
Makoto Uchida Interview	Collect 20 magic power-ups in Golden Axe.
Phantasy Star	Defeat the first boss in Sonic 2 with 2 players.
Reiko Kodama Interview	Collect 1000 in currency in Alex Kidd.
Shinobi Arcade	Complete the first level without using continues.
Shun Nakamura Interview	Obtain a Chaos Emerald in Sonic the Hedgehog 1.
Space Harrier	Score over 1.5 million points in the first level of Super Thunder Blade.
Takao Miyoshi Interview	Play Phantasy Star 4.
Tohru Yoshida Interview	Play Phantasy Star 2.
Zaxxon	Collect 5 Bonus Coins in Decap Attack.