here, a little bit of codes to play with

#Reload All Ammo Into Clip
;CREDiT: _xXxTWiST3DxXx_
;A PSP HACK SQUAD CODE
0x0013886c 0x00000000

#Big Bullets
;CREDiT: _xXxTWiST3DxXx_
;A PSP HACK SQUAD CODE
0x001f9774 0x3c044040

#Blackness
;CREDiT: _xXxTWiST3DxXx_
;A PSP HACK SQUAD CODE
0x0017b91c 0x3c043f76

#Slow Explosions
;CREDiT: _xXxTWiST3DxXx_
;A PSP HACK SQUAD CODE
0x0030fc94 0x3c063000