check yourself (and after learning it, you won't need to ask it every time for every games)
1.
http://wiiubrew.org/wiki/Title_database
2. search your game (CTRL+F) and be sure it's the correct region. (F3 to search next one)
3. copy the TitleID (00050000-10176A00)
4. replace "0-" with "E" (0005000E10176A00) to get the update ID.
0005000
010176A00 full game
0005000
E10176A00 update
0005000
C10176A00 dlc
run this:
nusgrabber.exe 0005000E10176A00
It will download latest update version.
Then, if you want to install on the console :
rename "0005000E10176A00" folder to "install".
Copy the "install" folder to your SD card. (if you already have it, delete the folder completely first, do not mix updates, it can only install one at a time)
then on wiiU browser go to
http://wupinstaller.com/wi
if it works, run it again
then, exit to mii plaza (where you see the mii walking) and wait (15-20mins) it will install the update.
Wait around 1H for the Smash Bros WiiU 2GB update.
If you want to use the update with loadiine
extract Cdecrypt and copy the wiiu common key inside the "0005000E10176A00" folder
run this:
CDecrypt.exe title.tmd title.tik wiiucommonkey.bin
copy the code, content and meta folders into your game's folder on SD card/wiiu/games/game name/. overwrite and replace files to apply the update.