According to Lab Zero Games, the total cost of adding a new character to the game's roster is more than $150,000:

"No doubt you've noticed the surprisingly large sum we're requesting to finish Squigly. Believe it or not, this is actually cheap for a fighting game character, and the only reason it's even this cheap is because she's already partially complete, and our staff have volunteered to take pay cuts to try and increase the odds of meeting our goal."
Contributed by ThisGuyInTheSuit
Attachment
Attachment