diff --git a/build.sh b/build.sh
index 919dc9d..57bf17f 100755
--- a/build.sh
+++ b/build.sh
@@ -3,17 +3,17 @@
 ##########################################################################
 # build script for TIC-80
 ##########################################################################
-# Comment the line below if dependencies are already installed.
-sudo apt-get install build-essential mercurial make cmake autoconf automake libtool libasound2-dev libpulse-dev libaudio-dev libx11-dev libxext-dev libxrandr-dev libxcursor-dev libxi-dev libxinerama-dev libxxf86vm-dev libxss-dev libgl1-mesa-dev libesd0-dev libdbus-1-dev libudev-dev libgles1-mesa-dev libgles2-mesa-dev libegl1-mesa-dev libibus-1.0-dev fcitx-libs-dev libsamplerate0-dev libgtk-3-dev zlib1g-dev libwayland-dev libxkbcommon-dev wayland-protocols -y
-echo For a normal build, use the linux target.
-echo -lto targets (Link Time Optimization) have smaller output size.
-echo wasm, emscripten and mingw targets require their compilers to be installed.
+echo "For a normal build, use the linux target."
+echo "-lto targets (Link Time Optimization) have smaller output size."
+echo "wasm, emscripten and mingw targets require their compilers to be installed."
 PS3="Select build target: "
-options=("linux" "linux32-lto" "linux64-lto" "emscripten" "wasm" "mingw" "chip-lto" "exit")
-#make linux
+options=("dependencies" "linux" "linux32-lto" "linux64-lto" "emscripten" "wasm" "mingw" "chip-lto" "exit")
 select opt in "${options[@]}"
 do
   case $opt in
+    "dependencies")
+      sudo apt-get install build-essential mercurial make cmake autoconf automake libtool libasound2-dev libpulse-dev libaudio-dev libx11-dev libxext-dev libxrandr-dev libxcursor-dev libxi-dev libxinerama-dev libxxf86vm-dev libxss-dev libgl1-mesa-dev libesd0-dev libdbus-1-dev libudev-dev libgles1-mesa-dev libgles2-mesa-dev libegl1-mesa-dev libibus-1.0-dev fcitx-libs-dev libsamplerate0-dev libgtk-3-dev zlib1g-dev libwayland-dev libxkbcommon-dev wayland-protocols -y
+      ;;
     "linux")
       make linux
       ;;