Exile's End

Exile's End is an homage to early 90's action-adventure PC games like Flashback and Another World, but with a Japanese flair. The core of the game is from Australian game maker Magnetic Realms with art, cutscenes, and music provided by legends of the 8 and 16-bit eras from Japan. It draws its thematic influence from the science-fiction films and anime of the 80's and its gameplay from classic Amiga and Commodore 64 action-adventures.
Music From Keiji Yamagishi (Ninja Gaiden NES, Tecmo Bowl, Captain Tsubasa)
Art by staff from Secret of Mana,First Kiss Story, Mother 3, and more!
NES-style cutscenes by OPUS (Half-Minute Hero)
Mature Content Description

The developers describe the content like this:

2D gun-based combat in a stylized science fiction setting, with brief depictions of bodily harm, mild mature language, and themes of sacrifice.