-Arrows to move the soul -Z to interact with the fight button Thanks to @alexwood2 for the gaster blaster engine. I got the soul and swing sprite from @SquashyLegend but added the blue heart mode. I think this battle would take place after killing sans in a genocide route, similar to omega flowey after killing asgore, so I made the fight styled like the omega flowey battle. It's definitely a lot easier than omega flowey. And the last thing, report any bugs you find.