There are some great games in here. I see quite a few getting some love, but here are some not many are talking about that are great:
PS4 Games:
inFAMOUS First Light - $5.99
If you like inFamous gameplay, you'll likely love this. While smaller than a main infamous game, it has great powers and part of the game is a cool, dedicated arena mode which really let's the combat shine.
Risk of Rain - $3.49
Realllly good. It's kind of unique, and almost seems simplistic, so watch videos first. You essentially fight baddies on an alien planet, getting pick ups that wildly change gameplay, and deciding when to move to the next area before you get swarmed.
Assault Android Cactus - $4.49
Dual stick bliss. This game is absolutely fantastic. Possibly the hardest platinum I've gotten, if you want to dedicate yourself to this game it will reward skill with it's combo system, but it's fun to just kill stuff too if you're not into that.
Crimsonland - $1.39
MORE dual stick bliss, and at that price, a STEAL. It was worth full price. Don't be fooled by the simplistic, almost ugly graphics, this game is a finely tuned, near perfect, dual stick shooter with an absolute ton of content, great weapons, and a great overall feel.
Galak-Z - $7.99
It wasn't quite as great as I wanted it to be, but damn is it still good.
Neon Chrome - $4.49
By the same people that did Crimsonland, but with more of a branching storyline [you go through a building, and you can unlock new rooms/etc for future plays]. It's missing a little magic to make it stellar, but it's still a solid buy.
Titan Attacks! - $1.99
Ultratron - $1.99
Think indie fast paced versions of Space Invaders and Robotron. Both are fun, both have issues, both are a bit too easy for me. But at those prices? Worth it if you like the originals.
PS Vita:
Soldner-X 2: Final Prototype - $2.99
Soldner-X 2: Final Prototype Complete Bundle - $2.59
Great shmups.
Crimsonland - $1.39
Risk of Rain - $3.49
See above
Super Stardust Delta Interstellar Bundle - $5.99
Super Stardust Vita is even BETTER than than the original. There's one major change -- instead of 3 'bullet' types [different ammo = better destruction of certain asteroids/enemies], they reduced it to 2. While this sounds like a major drawback, in practice it really amps the game up and actually improves overall gameplay. This game is absolutely fantastic.
Velocity Ultra - $1.49
SO good. I hate platformers, and this is basically shmup meets platformer meets time trials, but it's so well designed and so... perfect... it's worth every cent.