poster made in SFM

Frisk model by MagicalPounchOfMagic
ported by Source AniMaker

Flowey model made by Dyl, kimo & NE555

Toriel model made by Lewis & Virn

Sans, Papyrus, Annoying Dog & Alphys models made by Pipann

Undyne model by Rafaknight-RK

Mettaton model by Brewster T. Koopa

Asgore model by Guimian, 『Phanrotom』& ArTuRMV

Deviantart upload: https://www.deviantart.com/natbot4/art/Happy-Bday-Undertale-lol-929575950

do not use this poster without my premission nor claim it as yours