It is in the Artemis Database, but labeled incorrectly. JgDuff1 accidentally had it called "Sky Forces" instead of "Sky Force Reloaded". JgDuff1 doesn't exactly know what he is doing with codes, so they are a gamble for you to try. Check the /JgDuff/ folder in the Artemis database for the one wrongly named as "Sky Forces NPUB31813 01.00" for the codes. It has:
Memory Lot Of Point On Gain
Memory Lot + Infinite Resources On Buy
ASM Lot + Infinite Resources On Buy
Memory Infinite Shield
ASM Infinite Shield
Memory Infinite Laser
ASM Infinite Laser
Memory Infinite Bomb
ASM Infinite Bomb
Memory Infinite Health
ASM Infinite Health
Memory codes will require constant writing to memory while playing, so you will need something like Netcheat/Artemis/whatever other RTM Tools you can find. ASM codes can be applied to the eboot and copied to your PS3.
I don't know what to say at this point, there's only so much I'm lazily willing to do before I start feeling trollish and go the extra effort to not do the easy thing like posting it when you say you've downloaded it and can't find it. It's there, I looked. I hope you looked in the most up to date database within that archive.