Can I beat Sans Undertale and still get a refund?

Is it possible to buy Undertale, play through the entire game and beat the hardest bosses, and still be able to refund the game on Steam?~~~Music - Undertale

Don't even try to disagree : r/Undertale

Checkmate — I loved everything about Sans, but there's

Can I beat Sans Undertale and still get a refund?

Essential T-Shirt

Undertale: I beat sans. | Essential T-Shirt

I cannot beat sans and it's starting to make me upset enough to

Sans, Undertale Wiki

UNDERTALE: Second chances in morality, by Matt Leslie

How do your stats change if you kill a single monster in Undertale

Return of the Sans and Chara Friendship AU (art by me) : r/Undertale

Crypto vs Sans, Death Battle Fanon Wiki