User blog comment:Vadron/My thoughts on Heroes United/@comment-3235402-20111127192131/@comment-4539351-20111128060612

''They WERE supposed to be reused. The future aliens and the halloween trio were in the theme song. -___- ''

Being in the theme song does not necessarily mean that they will be used. Of course this is Ultimate Alien so things might be different to how they were in the original series, but I'm not complaining about an alien being underused until it actually appears on Ultimate Alien.