Found this info on another site:
INFERNAL HERALD - 2GS
Destroyed ]-[I/34<#!.
The description for ‘Infernal Herald’ may be confusing. It’s actually for beating Hibachi, the traditional secret DoDonPachi boss. To reach the robotic bee, you’ll need to take down the regular boss of Stage 5-E, the hardest version of the fifth stage. Only then does Hibachi appear. Meeting and beating him will be no easy task – I personally can’t handle Stage 5-A, let alone the harder variants!
Source:
http://www.wpcentral.com/gaze-dodonpachi-maximums-nigh-impos...