Nightmare City is a series of two Flash animations created by Clairvoyance. In a nutshell, they feature cats (and one human girl) fighting to protect a virtual world from an Ax-Crazy blue cat who wants to trap them in the world forever. The animations are both music videos and feature no sound apart from the song and very little dialogue - most of the story is told through the visual.
The first movie, Nightmare City, features The Hero (an orange, male cat) fighting against the blue cat while protecting his supposed girlfriend, a pink cat. The two of them conspire to leave the virtual world together, but the pink cat remains behind at the end of the video to confront the blue cat, while the orange cat promises to return soon. A hidden scene accessible through an Easter Egg in the Flash version shows a boy (who looks vaguely similar to the orange cat) waking up in some kind of machine, confirming that the city is a virtual reality. The song used is "Southern Cross" by Japanese band 403 Forbiddena.
The second movie, Nightmare City: Catastrophe, picks up where the first movie left off. We see that the blue cat had survived the pink cat's attack on him at the end of the first video (or possibly was resurrected somehow), and has now recruited a team of minions. A small resistance group battles said minions, while the hero returns to face off and ultimately defeat the blue cat, though not without cost... The song used is "Northern Lights" by 403 Forbiddena.
This series provides examples of:
- Ax-Crazy - The blue cat. Might be a bit of a Blood Knight too, given how much he seems to enjoy fighting the orange cat.
- Bilingual Bonus - Translating the Japanese on the screen provides more information about the plot, including referencing the fact that the city is virtual and hinting that the pink cat is part of the program and not real. An English version of the video, made by Clairvoyance, exists for those who don't speak Japanese.
- Crapsack World - Nightmare City itself, especially in Catastrophe.
- Foreshadowing - "Thank you... but I can't go with you."
- Note also that the pink cat stops just before the border to Nightmare City, on the inside.
- Heroic Sacrifice - The pink cat sacrifices herself to save the orange cat's life. The orange cat then apparently absorbs her soul, causing him to be able to turn into his human form (though still with cat ears) and defeat the villain.
- Kiss Me, I'm Virtual - The end to Nightmare City: Catastrophe shows that the pink cat that the hero fell in love with was actually just a program in the virtual world, which explains why she couldn't leave at the end of the first video.