Accumulate 6 million points to unlock the Jagdpanther. Alternately, earn 25 medals.
Extra weapons:
Enter FAE MASTER! as a pilot name, "Mexico" as a country, and "Female" as a sex to begin with 12 fuel-air bombs. Note: Enter FEA MASTER! as a pilot name in the Japanese version.
Type 9:
Earn 13 medals to unlock the Type 9.
Type 13:
Earn 41 medals to unlock the Type 13.