Dynamite Headdy/YMMV

• Awesome Music: Tons, but especially the epic final boss theme, and the cast theme. Nasty Gatekeeper's theme makes for a brilliant Oh Crap too. The tribute album Secret Bonus Point only makes it better.
• Breather Level: Technically, Stage 7 itself is only a few screens long, has no threats whatsoever, and even goes so far as to pamper you with a bonus stage. Even the boss is a cheery, relaxing affair. Then you get punished gruesomely for your naive belief that the game would be so kind, and the rest of the game past this point is no better.
• Mary Sue: Possibly invoked in the Japanese version, where it is revealed that Dark Demon was originally Smiley, an animate award that was supposed to be presented to the "greatest puppet", but instead interpreted this to mean that he was to become the greatest puppet, leading directly to his Start of Darkness and transformation into Dark Demon.
• That One Boss: Treasure does everything to the Nasty Gatekeeper short of putting a sign over her head saying "this is That One Boss". The introduction, the music, and of course the difficulty (at least until you get the hang of it). then again, a little later on you get Twin Freaks which doesn't have the intro or music, but sure has the difficulty. Compared to them, the Final Boss is a cakewalk once you know how to fight him. Even before that there is, in the Unexpected Shmup Level, Baby Face, who puts you through laser hell while repeatedly reaching up to grab you with a hideous hand.
• That One Level: Act 8, Scene 3, "Fun Forgiven" isn't too hard; it has the game's first potential of being squished, which is a One-Hit KO, but careful movements can keep the risk of that to a minimum. Then at the end, it has a bunch of Hangmans flipping in and out of usability with spike pits below. Unless you know what you're doing, this part can be despairing to get through.
  • Act 5, Scene 2, "Stair Wars" can be a troublesome level for some, since trying to hit Trouble Bruin while attempting to rise up a tower where the screen is auto-scrolling is certainly easier said than done. There's also a lot of potential for fury if Bruin randomly decides to do the move that doesn't put him in danger a bunch of times in a row.
• Unwinnable by Insanity: On the first real level, you have to catch a nearby platform to be able to climb a wall. As seen here, if you bring the platform too far away from the ledge or the other platform, you won't be able to continue. You can't move the platform again, and, provided you killed the only enemy around, you can't kill yourself, forcing you to reset the game.