its like this, these special moves get unlocked one by one character by character.
i think the 1 and 2 are for a character called "jones" who has this tele some thing, this enables him to shift his soul into any of the ugly enimies and make them do what they do not want to do.
so when you play him you get close enough to that enemy and press E until you jump into their body and then according to the situation you get to hit 1 or 2.
you can also jump into the body of the "FirtsBorn".
and then "rawlings" the priest, after few levels he has the ability to suck energy from the fallen enemies, i could not yet master that.
so the game is not that all bad, but its very very linear.
And you never seem to see day light ever.