DJ Hero/YMMV

Nightmare Fuel: Deadmau5' intro cutscene from the second game. Take a look for yourself.
- Possibly becomes Nightmare Retardant, as immediately after that cutscene the mau5head gets a big goofy grin on it and deadmau5 humorously waves at the camera.
Breather Level: While the Good Thang / Big Beat mix can be a bit tricky, neither of the J. Period Presents mixes are anywhere near as tricky as some of the mixes you'll do to unlock them.
Crowning Music of Awesome: Complete with its own page...
- Also noteworthy in that most reviews often praise the music, even when bashing the game in general
- Vindicated by History: Musically at least it's definitely received praise in hindsight.
Ear Worm: Pretty much everything.
That One Boss: In Empire Mode from DJ Hero 2, David Guetta's DJ Battle Mix (MSTRKRFT's Bounce Remix). It only has 6 checkpoints and both players have very little advantage, and no matter how you try, David's trigger happy wits will triumph over you in the end (Granted since his lightning fast wits will lock you out thus giving you a slim chance of winning). The only hope you have is to beat him to the punch and be flawless, or lose. (FYI: Draws don't count)
- That One Song: Let's put it this way: If any of the mixes you play are made by the Scratch Perverts, chances are you're not gonna clear said mixes with 5 stars in one go, barring the Easy and Medium difficulties. Case in point, Beats and Pieces, The Groundhog Beat Juggle, and, god forbid, the Galvanize Remix. you'll get a trophy/achievement if you did not manage to 5-Star it on Expert.