Undertale controls: Arrow keys to move stuff, [Z] to confirm, [X] to cancel and skip some text. ALSO, you probably want to have full HP when he uses his special attack, or else you will probably get rekt (you'll most likely get rekt first time you get to it anyway xD) Battle takes place on a genocide run, at the enterance to the CORE. Hold [Q] and press [R] to do a "True Reset"
MUSIC: (kind of contains spoiler for this battle, so uh don't read it until you reach certain point (you'll probably know when that point is)) Phase 1 - Lunala fanmade theme by ElectricMudkip https://youtu.be/NG5GKHRXPIk Phase 2 (that's the spoiler, battle has phase 2 =P) - Shadow Queen battle part 2 theme from Paper Mario: The Thousand Year Door. by Nintendo This battle was made with my simple battle creator https://scratch.mit.edu/projects/107545412/
