Shenzhen Hengge Technology Electronics Co., Ltd.

Background
Shenzhen Hengge Technology Electronics Co., Ltd., also known as Henggedianzi, is an unlicensed Famicom game developer and distributor from Shenzhen, China. It's likely that they had strong ties with Jncota.

Logo (2004?-200?)
Logo: Over a black background there's an abstract "G" colored between green and blue, below there's the Chinese text and the pinyin "SHENZHENSHIHENGGEKEJIDIANZIYOUXIANGONGSI".

Variant: A different version has the briefened Chinese text below along with the blue text "HENGGEDIANZI".

Technique: None.

Music/Sounds: The opening theme of the game. Availability: Extremely rare. Notoriously appears on the NES bootleg games Pokémon Diamond II and Pokemon Leaf Green.