Undertale hand drawings - Underpants Sans SANESSS Creator: Sir Pelo

Steam Workshop::wesh j vai t goomer

Sr Pelo's Underpants - Sans points at Frisk (Delta by Abbysek on DeviantArt

Sans Undertale Fight Animation

UnderPants [Genocide Story version], Wiki

Underpants - Genocide Ending (SPOILERS)

Stream MEGALOPANTA [My Remake Of HyperSonicX1's UnderPants Megalovania] by Shaxis [Archive]

Underpants - Normal Ending (SPOILERS)

Underpants Sans Render by Kingevan210 on DeviantArt

Steam Workshop::sir_g