Metal Slug Anthology Cheats for Wii
Complete the following tasks to unlock the corresponding effect.
Unlock Tonko Art:
Beat Metal Slug 6 on any difficulty setting with limited continues.
Unlock Special Music:
Complete Metal Slug 1-5 and X on Hard with limited continues and also complete Metal Slug 6 with limited continues.
Complete Metal Slug 6 and you will unlock some extra artwork.