Хаотичный скролл-шутер с 3 различными режимами, 2 из которых откроются только искусным мастерам жанра.
Идеи для геймплея разработчик позаимствовал у многих представителей ретро-классики.


Hyperspace Invaders Zero is based on a collection of minimal game concepts.
The main game - Soulgrinder - is a hectic vertical scrolling shooter (or "shmup" if you will) that borrows bits of mechanics from a multitude of games, enough so it can act as a novel game on its own.
If you play well enough, you get to unlock two other games which are heavily inspired by classic games such as "Space Invaders" (Retro Mode) - including a Retro 2P Mode - and "Paratrooper" (Space Trooper Mode). The main idea behind all 3 of these was simply to create an addictive virtual interactive environment.