Try my cheat-codes for game Catherine (BLUS30428).

Unlimited items, only one type at the same time (not work on the first level).
You can't see it, but you can use it by pressing SQUARE button.

NetCheat PS3 format:

Always have the Light Block
6 0199A7C4 000000DC
0 00000000 00000001

Always have the Dark Block
6 0199A7C4 000000DC
0 00000000 00000002

Always have the Stop Time (hiden item)
6 0199A7C4 000000DC
0 00000000 00000003

Always have the Remove Enemies
6 0199A7C4 000000DC
0 00000000 00000004

Always have the Climb 2 Steps
6 0199A7C4 000000DC
0 00000000 00000005

Always have the Climb 3 Steps
6 0199A7C4 000000DC
0 00000000 00000006

Always have the Make Blocks Normal
6 0199A7C4 000000DC
0 00000000 00000007