arrow keys to move HIDDEN EASTER EGG: and if you wait for a while and flowey speech after you get a unwillingly dooming demise in this another song plays and after a while in it the game goes nuts
PLEASE NOTE: THIS IS A WORK IN PROGRESS thank Toby Fox for making undertale, and thank LEGO for, uh... legos! (and thank omega flowey for trying on the shirt!) (he seems unhappy-ish though '~')