Guacamelee is the main example of what can happen when you combine indie games and the PS Vita, you can get an absolute masterpiece. After VitaBoys had played Persona 4 Golden, they did not think they would end up rating any other Vita game so high again. However, DrinkBox studios has definitley changed that.
The PS4 has a killer roster of incredible platformers. Ranging from simple 2D platformers to vibrant 3D platforming games.
No mention of Astrobot on the VR, one of the best platform titles Sony have put out
Guacamelee is an amazing Metroidvania series with a fun story and beautiful graphics. Check out Jason's Nindie Spotlight on this gem that highlights its unique art style and fantastic boss fights..
Chirag Pattni discusses some of the best Metroidvania titles to be released this generation.
Hollow Knight is really good. GreenPath was my favorite area of the game.
Guacamelee 1 was also good. I got to check out G2.
I highly recommend TimeSpinner. It's on everything now but I played and platinum'd it on PS4. Excellent classic style MV with a cool 'time' element and hidden secrets, bosses, multiple ending/outcomes, etc. 9/10 from me.