It is becauseI must have not replace the clip back again after adjusting the collider. That can be taken care of. I'd noticed one interesting glitch, Hailey can scale a wall if repeatedly press jump while holding direction button. Again issue with the collider and will be resolved in next update.
I have plans for adding three monsters later in the game. Two will act as enemies and one will be an ally. I do not understand what you mean by ero illustration.