Lunyka, simple way to put it: Koki is Mario. Sami is Luigi.
Koki's all balanced and easy to play; Sami is there for a little more challenge [actually, artificial difficulty if you're going for Lost Levels-ish Luigi]
In other words, if the character's guns feel one-sided, think of Sami's gun as a reward for being able to complete the game up to that point (and to make up for her rather sloppy control in comparison to Koki)
also why does the idea of "scrolling shooter" and most of the plans for it sound something similar to a Megaman X game
Koki's all balanced and easy to play; Sami is there for a little more challenge [actually, artificial difficulty if you're going for Lost Levels-ish Luigi]
In other words, if the character's guns feel one-sided, think of Sami's gun as a reward for being able to complete the game up to that point (and to make up for her rather sloppy control in comparison to Koki)
also why does the idea of "scrolling shooter" and most of the plans for it sound something similar to a Megaman X game