
You'll also find a few PS2-on-PS4 games on sale; if spending $10-$15 on slightly updated PS2 games feels like too much ordinarily, you can now pick up Rogue Galaxy for $5 or Star Wars: Bounty Hunter for $4.
PS3's lineup has some worthwhile games as well, with Super Street Fighter II Turbo HD Remix ($2), Devil May Cry HD Collection ($3), Beyond Good & Evil HD ($2), Battlefield 4 ($5), Shadow of the Colossus ($4), and more discounted.
On the portable side, the choices are more limited. The aforementioned Niddhog, Risk of Rain, and Bastion all support cross-buy, as does Hitman Go ($3). Persona 3 Portable (playable on Vita or PSP) is $5, while there are a pair of PS1 Classics playable on PS3, Vita, or PSP discounted: Breath of Fire IV ($2.39) and Castlevania: Symphony of the Night ($4).
This sale runs from now until Monday, January 23, at 8 AM PT / 11 AM ET. PlayStation Plus subscribers don't receive any additional discounts. You can check out the full sale here.
Source: GameSpot