Bonus Cash code
     From the Main menu go into Exclusive content and enter Enter code.

735S653J: Bonus Cash to be able to buy better weapons earlier in the game.



Very Hard Mode
     Beat  Single Player mode for the first time and you get Very Hard
mode to play as.



Skip Quickdraw for Final Boss Exploit
     When  playing  Thomas, there is an alternate (semi-glitch) method
to  defeating  Barnsby that requires a prime condition volcano gun (or
better).

     After  wearing  down Barnsby enough, Thomas can use concentration
mode, fire all twelve shots straight into the boss and occasionally be
able to kill him instantly (skipping the quick draw sequence). If this
happens,  the  game  will  skip  the final duel and go straight to the
ending.



Final Boss Trick
     As  Thomas  in  the  final  chapter, have a prime volcano gun (or
better).  After  hitting Barnsby for a while, but before he starts the
duel, use concentration mode and shoot all twelve shots into him. This
might  cause him to die outright, so the game will skip past the final
duel and go to the ending.