Despite (because of?) being a pretty dense and esoteric doujin bullet hell shoot ‘em up, Hellsinker has enjoyed a cult success over the years. But now that an English translation patch has been finished, perhaps more people can enjoy its unique flavor of shooting. Thanks to Noah! from the forums for posting enthusiastically about it a few months ago.
Like most shoot ‘em ups, the goal of the game is to advance through the stages and earn a high score (called “spirit” in HS). However, Hellsinker also has a unique meter called “terra” that can deplete to send you to the Shrine of Farewell, a special boss rush level that resets your spirit counter but can end up doubling it if you’re good enough. There are many other quirks to the game, and the numerous ship types ensure that there’s a lot to understand here, whether you’re playing it in your native language or not.
Beyond that, if you’re interested in learning more about Hellsinker, you’re probably best off exploring it yourself or looking through the various guides that I’ve posted below along with the download/purchase links:
TIGdb: Entry for Hellsinker