User blog comment:Moomington/Hello?/@comment-50.45.107.182-20111221161356/@comment-4692645-20111222143240

Also, there are also a lot more melee ones in hard mode. It's about the ratio. Of course, hard mode balances it out a little bit, but I intended these as normal mode ones anyway. For hard mode, they could become, like Sutero said, Illuminant and/or Corrupt.