Hello eishiya, thank you for the feedback, I'm not going to do the game, but it is a setting I would love to keep exploring further, and I will post more characters I did for it. As for the transparent background, I will fix it. 

This is so 90s to the point where it could probably do really well if made today xP Any chance that you'll make the rest of the game?

By the way, on PJ solid-colour backgrounds are generally discouraged, especially for sprites. Unless the background serves a purpose, it's best to leave it transparent.