Appropriate to the comedy's otaku cast, 5pb. (Steins;Gate, Muv Luv) has transplanted the stories of moe Lovecraftian evil Nyarko-san into PS Vita game Haiyore! Nyaruko-san Nafushigatai Game no Yōna Mono, scheduled for release on May 30th.
Get a look at the latest promo...
Some of the less-NSFW store specific promo items include
Animate - hug pillow
Imagine Books - store card
WonderGOO - tapestry