Tales from Space: Mutant Blobs Attack was one of the first games I ever picked up for my Vita, and I still find myself going back to it from time to time. Today, it's available via PS3 for the first time, so you can save civilization from the monstrous creatures at your leisure from the safety and comfort of your own living room.
It's silly, schlocky, and available as a regular download via PSN or the Delicious Bundle, which has the PS3 game, soundtrack, a theme, and avatars available for $11.49. If you've got the Vita version already, you can get the Vita Upgrade Bundle for $3.99, which gives you everything in the Delicious Bundle at a lower price since you already took the plunge. Additionally, the game itself will be on sale for 10% off for PlayStation Plus members for one week.