more enemy placeholders

finally got around to draw another set of enemy placeholders, I'm experimenting with the different ways to implement the battle system. there's small problems here and there I need to solve, but as a whole, it's moving forward, very nice. the one thing that keeps me worried is the amount of frame by frame animation I need for the battles. each enemy needs idle, attacks, defense, getting hit and special moves. but for now, I've added some left and right movement instead. hopefully we find a good pixel artist along the way to make fighting a whole lot more interesting.