Ninja Brigade feat. Jonah Weingarten

The Story
Musician Jonah Weingarten wanders the streets at night after a show. An arcade hall catches his eye and he decides to stop there. The arcade station Ninja Brigade captures his attention. But suddenly he is drawn into the arcade station by *insert any reasonable science fiction term*. Now he is the main character himself and tries to finish the game to return to his world.

The World
The world of Ninja Brigade is set in ancient Japan and features various places. Among them, the castle and landscape of the Edo-jō, a dark cave that has fallen into oblivion, a sinister graveyard forest that turns into a mountain plagued by winds, and even hell itself (in which the final boss could possibly be placed).

Onification
The special thing about Ninja Brigade is the onification of the world. Onification is the infection with demonic energy, causing the world and its population to become unbalanced and even more savage. However, Jonah can use this energy to unleash his inner Oni.

Skills
Jonah Weingarten's Ninja Brigade is a 2D action platformer in the style of a Metroidvania. Jonah can learn new abilities during his adventure to be able to face the dangers he is confronted with. These include not only the insidious world itself, but also its inhabitants, the Yokai.

Combat
The world of Ninja Brigade is home to a wide variety of Yokai. To defeat them in action-oriented battles, Jonah uses both the speed and agility of a ninja and the strength and brutality of an oni.

Bosses
Each region is guarded by the largest and most vicious Yokai. Defeat this one to advance and steal some of its power. But be careful, always be on your guard and don't get distracted by their various features (the ones related to combat).