Sprite of Lady, the librarian in San Miguel.
Appears on these pages
Boktai: The Sun is in Your Hand, known in Japan as Bokura no Taiyō: Solar Action RPG...
Boktai 2: Solar Boy Django, known as Next Bokura no Taiyō: Solar Boy Django (続ボクらの太陽太陽少年ジャンゴ...
The Boktai series of games have many cameos of other companies' games and mascots.