Unlike the DDP DX, this one includes 3 cheats by typing the directional buttons (you can find them in the options menu, same with DDP DX): 1. Unlock all stages 2. Unlock level selector for each available stage (1~100) 3. Unlock sound test (5 songs total)...

The latest version of the patch can be always found here: https://github.com/MKCAMK/G-MODE-Archives-translations/tree/main/patches/Deadly%20Danmaku%20Trial%20-%20DoDonPachi%20Dai-Ou-Jou%20Edition/English/Steam

From the store page: The G-MODE Archives is a reissue project that faithfully recreates old feature phone games as they were back then. It isn't mentioned whether this is done via emulation or proper ports. Aside from that, I'm happy to see a project like this. Most of the games from the feature phone era are lost to time, particularly in Japan, so it's nice to see something being preserved from it....

Anyway to remove the horizontal borders to have this game properly fill a tate/portrait monitor?