After many plays trying to get the easy badge - note that I did manage to kill enemies(bats, bugs, flying dinosaur dude in the clouds) in superman mode and didn't get the badge - I finally received the badge after killing a tortoise, so I wonder if it is a specific baddie that is needed in order to get it.
Would really like the option to select how many items - such as Kandies or Kongbuns - to purchase all at once, instead of having to purchase one at a time.