Higher movement speed, but weaker option fire.

This mode replaces the "reflect" system of the arcade version with an aggressive scoring and bullet-canceling loop: Akai Katana Shin Review - Nintendo Switch

Slower movement, but focuses your option's power into a concentrated attack. Phantom Form (Soul-shift):

The modern Switch release includes three distinct versions of the game:

The original 2010 arcade experience in 4:3 aspect ratio.

This guide for on the Nintendo Switch covers gameplay mechanics, scoring systems, and technical details for the updated release. Game Modes Overview

An updated "home" version with a 16:9 aspect ratio and the Katana system .