FUNKO FUSION

This isn't really a guide since it's self explanatory but more so a heads up if you unlock a character and you buy a variant and then play as them it won't count if you're wearing the variant I was stuck at 85% on the tracker with all characters unlocked and I couldn't figure it out so i took off all variants and sure enough the tracker went up the only exception might be the red megaman variant

Ok, so after a lot of trial and error I’ve come to the following conclusions. You must use all story characters original skins, no variants. Also I would include all story level characters, all cameo level characters I.e Doc and Marty etc, and all single cameo characters i.e Chucky and Xena etc.
I would also include Freddy Funko, Eddy Funko, Proto, Foxxo and Colonel Sanders.
Now where I went wrong was that I originally don’t think I had played as each character long enough. With the use of the achievement tracker I was able to see that for any characters I hadn’t used before, I timed that it didn’t register until after 12 seconds.
I don’t think it matters if you’re in the hub or a level but mine popped in a level.
There should by my count be 62 characters needed.