Successfully complete the game on the Medium difficulty setting to unlock 
the Reaper and Splitter. The Reaper is found near the beginning of the 
first level when you start a new game. The Splitter fires a salvo of 
large rockets. The secondary fire splits each rocket into a wall of 
mini-rockets. It is similar to the R.Y.N.O. from the original Ratchet 
And Clank.