Asriel talking to the protagonist about the friends they have made
Menu (Full) is the 93rd track in the Undertale Soundtrack. As the title implies, it is a more fleshed out and vibrant version of Start Menu. It plays on the menu screen after the protagonist defeats Asriel Dreemurr in the True Pacifist Route but before leaving the Underground. The song is also slightly reminiscent of Hopes and Dreams.
In the Undertale Demo, this song plays after completing the game.