Nubla (easiest Plat on whole of PSN imo)
Adam's Venture: OriginsAabs Animals (no Plat, though. Also has a separate trophy list for Vita version).
Any of the Telltale Games. (Most only require you to beat the game)
Any point and click game if you're willing to use a guide.
Any visual novel game if you're willing to use a guide.
Most puzzle games if you're willing to use a guide.
Any game primarily aimed at children.
There are many other easy games besides of course but these are the ones that are usually
really easy, fast and take little to no skill whatsoever. :P