Congrats on getting your first demo out!
I got a score of 200.
Controls were nice and simple but I felt like the enemies came at you too quickly for just starting out -- I died about 2-3 times before killing my first enemy. Didn't encounter any flying enemies so the archer was kind of useless and slowed down cycling through my characters. Maybe have the first level just be one type of enemy so the player can gradually get accustomed to what character can fight what.
Tutorial and animations were good, and it definitely looks like a Gameboy game!