I was able to apply the %20 off code ENT20 to a game that was less than 49.99 (PS2 / sakura wars, so long...deluxe pak - 39.99) when combined with PS3 / resonance of fate.
It works combining it with any game 49.99 or higher.
Ended up with both for 79.98 and free shipping - (sakura - 31.99 /...