ok here it goes(U NEED ALOT OF PATIENCE)...
as u know or will know the last boss is xtreamly difficult! but i found out a way to make it a lot esier.
1st u gotta upgrade ur necroplasm.
2nd up grade all of ur weapons specialy the chaingun.
3rd restok on all of ur weapons all the way up(ur gonna need it)
the n finally go to the last level and get ready
wat u gotta do is hav ur chain gun ready then quickly freeze time.then target and fireaway!
once u get his health to around 3/4 of the way or run out of necroplasm. u gotta keep ur distanse and fire. wen u take all his HP he wil still b alive u gotta get in close and use ur axe!
You must pause the game first and use the Directional Pad to enter these codes. Successful entries will sound off he words of "Necro Goddess" or "Necrolicious":
All Weapons: Up, Down, Left, Right, Left, Right, Left, Left.
Infinite Ammo: Up, Down, Left, Right, Up, Left, Down, Right.
Infinite Health/Necroplasm: Up, Down, Left, Right, Right, Left, Down, Up.
Infinite Necroplasm: Up, Down, Left, Right, Down, Left, Up, Right.
No Blood: Up, Down, Left, Right, Up, Up, Up, Up.
Open All of the Comics: Up, Down, Left, Right, Right, Left, Left, Up.
Open all Missions: Up, Down, Left, Right, Left, Left, Right, Right.
Open the Encyclopedia: Up, Down, Left, Right, Left, Right, Up, Down.