It appears to be impossible to get the achievement for unlocking 140 characters because there are only around 122 available to play, and since the game is removed this is unlikely to change. I still have around 6 left to unlock because the RNG for unlocking new characters is horrible....

i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i hug you i...