Floppo's Ralsei Hatless Mod.
(aka Ralsei if he didn't use bone hurting magic to reconfigure his entire skull when he took his hat off)

INSTALLATION INSTRUCTIONS
=========================
0: Install UndertaleModTool
1: Open the data.win you want to install the sprites into with UMT
2: Click Scripts > Resource Repackers > ImportGraphics.csx > Yes
3: Select the corresponding "Sprites" folder for the Chapter
4: Click Yes > Ok > File > Save
5: Save the data.win in its original directory and enjoy your boy! (Optionally, back up your data.wins before modifying them. This is also just good practice)

NOTE: There isn't really anything wrong with using the Chapter 4 sprite folders for Chapters 1-3, since the extra portraits won't be called anyway. Do NOT do this with the Chapter 5 sprites! Radiation "Tricky" Tony shuffled and reordered the portraits in Chapter 5 for some weird reason, and they'll be the wrong ones if you import them to previous chapters.