Move with the arrow keys. Get to the green goal.
Undertale was made by Toby Fox. Many of the sounds and icons in this project are from the Undertale Simple Battle Creator by pococikapusta (whose name I still can't spell without looking at it) Undertale bosses might have more than 1 soul maze representing their battles. This will be the first like this. Toriel blocks the way! Taking a break from soul mazes, I'll be back soon.