UnderSwap Reacts: Blue, BlueBerror, Yanberry || Ft. ErrorBerry || Pt. 1/2

(8:21)

Underswap react to..... [Español/English] (Part-Parte 1)

(10:)

Underswap reacts to undertale 1/?

(7:36)

I've Poisoned the Water Supply!!! - UF! Pap x TS! Sans (Undertale Short)

(40)

Undertale Reacts to the au Christmas Party || Part 1 || Sansby || Gacha Club || LilyPad

(10:36)

|| L.O.V Reacts to Bad Sanses || 1/1 credits in desc!

(32:38)

Sans Au's React To Swap Sans//GCRV//

(5:18)

Underswap reacts to Swap || [🇺🇸] || 8/?

(1:16)

UnderSwap reacts to Swap || [🇺🇸] || 6/?

(2:32)

Deltarune React to Undertale (Mostly Chara and Frisk)

(21:29)

Past \

(8:36)

Underswap reacts 1/? (unfinished)

(5:40)

Sans AUs react to Error and Swap [] BlueBerror [] ErrorBerry [] other ships [] part 2 []

(8:43)

░𝐏𝐚𝐩𝐲𝐫𝐮𝐬 𝐀𝐮'𝐬 𝐑𝐞𝐚𝐜𝐭 𝐭𝐨 𝐭𝐡𝐞𝐢𝐫 𝐒𝐚𝐧𝐬'𝐬░

(13:25)

Underswap reacts to : ??? {Dustberry}

(2:36)

ᴜɴᴅᴇʀꜱᴡᴀᴘ ʀᴇᴀᴄᴛ ᴛᴏ ᴄʜᴀʀᴀ ᴀɴᴅ ꜰʀɪꜱᴋ || 1/? || first video ! || GCRV (Gacha club reaction video)

(6:27)

Underswap react to If Blue joined the Bad Sanses Part 1 2x

(30:43)

Underswap reacts to glitchtale part 1/Camila cuevas-glitchtale

(4:46)

Underswap reacts to sans||non-canon|| #undertaleaus #underswap #sansaus

(5:59)

SANS BURNT THE WATER (but underswap)

(31)

Underswap reacts to memes [short] !¡!FIRST VIDEO!¡! RUS/ENG

(6:56)

Blue isn’t mad… | Underswap Skit

(39)

Underswap reacts

(4:44)

Underswap reacts to comic dubs 3

(4:10)

Underswap reacts to Undertale || Unfinished || No Part 2 || Bad/Lazy

(3:35)

Underswap reacts //part 20//

(20:37)

Underswap reacts

(2:23)

Underswap reacts to Swap || [🇺🇸] || 7/?

(3:32)