- Awesome Music:
- Base-Breaking Character: Kaito Yashio himself. He's either an underwhelming protagonist who lacks enough any motivation other than playing Kill-Ballad, or a loyal friend does what he can for the Robotics Club.
- Broken Base: Both the VN and the anime seem to get this, the anime more so. Is it a decent installment/series that just couldn't match Steins;Gate, the most underwhelming of the Sci Adv series, or just an average title?
- Ensemble Dark Horse: Frau has a rather large fanbase, and she is even featured as a playable guest character in Phantom Breaker: Battle Grounds.
- Hilarious in Hindsight: Episode 11, which is focused heavily around the Earth being destroyed by a solar storm, aired on December 21, 2012.
- Les Yay: Frau Kojirou calls Junna Daitoku a "seductive bitch" for smelling of a nice perfume, although it could also be a case of Stupid Sexy Flanders (She tells her to GTFO). She also does something like that during a photo session with Junna.
- Or Airi, she's smitten by her, when she sees her in 3D.
- Strangled by the Red String: In the anime, between Akiho and Kaito. Their friendship was given plenty of focus throughout the series, so by the end of the series it's clear enough that they're good friends with a strong bond. However, almost none of their interaction was romantic in nature, or even hinted at being romantic. Their explicitly romantic development consisted of a few scenes where Akiho becomes irate with Kaito for hanging around Frau too much, Mitchie cracking some jokes about a potential relationship between them, and a small amount of initial hesitance to sleep in the same bed when there's only one in the hotel room Mitchie got them. Even then, Akiho's the one who reacts the strongest, resulting in the perception that the crush is onesided. Thus, the Relationship Upgrade winds up coming out of left field. A romantic relationship between them was never completely out of the cards and is far from nonsensical, but it certainly skipped quite a few steps down the road of its development.
- The Scrappy: It only took Episode 9 for people to start disliking adult Misaki, seeing how callous she is towards Aki.
- Tear Jerker: Doc and Jun's reconciliation in Episode 12.
- Airi getting deleted in Episode 15.
- Kai's ultimately futile attempt to save Mizuka in episode 16.
- Tough Act to Follow: While not the only legitimate criticism, being billed as "the sequel to Steins;Gate" definitely put some high expectations on the series
- Uncanny Valley: Tetsuharu's robots, or at least one of them, after it falls on top of Junna when she was younger. It asks to be her friend, but due to being pinned underneath the robot at the time, it's usual friendly statement sounds incredibly creepy and causes her fear of robots.
YMMV / Robotics;Notes