A prototype for a boss fight against W. D. Gaster from Undertale. Arrow keys to move. Don't get hit, and survive 10 attacks to win, it's a work in progress so really he just stands there. If you're wondering what the symbols mean, search "Wingdings translation" into google images. Press "Z" to attack at the end.
Gaster - Undertale Heart - Undertale Attacks - Me Coding - Me FULLSCREEN = LAG