That One Attack/Playing With

Basic Trope: An attack that is very annoying, hard to dodge, and/or does huge damage.

Straight: Emperor Evulz has a giant laser which requires pinpoint timing to dodge and does lots of damage.
Exaggerated: Emperor Evulz has a near impossible-to-dodge attack which is a One-Hit Kill for the entire team.
Downplayed': Evulz's Laser is quite powerful, but not ridiculously.
Justified: Evulz is frightened you are almost beating him, so he uses his strongest magic.
Inverted: One of Emperor Evulz shoots a small orb that does very little damage and moves slowly, this was put in by the developer to give the player a breather.
Subverted: Emperor Evulz charges up like he's gonna do something really good, but then shoots an easy to dodge orb that only does one damage...
Double Subverted: ...followed by a huge barrage of faster ones which are guided.
Parodied: Emperor Evulz's finger poke is That One Attack.
Deconstructed: Emperor Evulz's giant laser of doom does indeed do a ton of damage and is hard to dodge, but it drains all his power and leaves him a sitting duck afterwards.
Reconstructed: Fortunately for him, he has an alternative source of power he can use to charge himself back up as many times as necessary.
Zig Zagged That after mentioned barrage has really poor range.
Averted: No boss has a particularly powerful attack
Enforced: Lets trick the player into thinking they have beat Evulz, then he breaks out the big guns.
Lampshaded: "WAHAHAHAHA!!! Prepare to lose a life, sucker!"
Invoked: Emperor Evulz tries to obtain powerful magic to destroy our heroes.
- Exploited: The Man Behind the Man observes Evulz using this attack, and decides Evulz is the right person to absorb power from.
Defied: Emporer Evulz power down the attack, so he can do a variety of decent ones instead.
Discussed: "I'll shoot you with my Mikuru Beam!"
Conversed: "That sure is a hard attack, eh, Alice?"