Polychromatic

Here. Used to be a "spooky jamjar" game, but is now more crack/slice-of-life set in a city called "The City." Deities kidnap characters and make them go through periodic curses.

This game provides examples of:

Accidental Kiss - Mistletoe curse inspires random bouts of this.
Accidental Pervert - Might as well change that to perverts...
Aerith and Bob - Unavoidable, considering the panfandom nature of the game.
Alternate Universe - Possible with several different curses and events, including:
- A Road Not Taken - Cursed characters are changed based on whether they made a different life-altering choice.
- Genre Switch
- The Years That Never Were - What would have happened if a character's life was changed due to events outside their control.
Another Dimension - The setting for the game. The City also has its own in the form of the Shadow City, which also doubles as a Pocket Dimension.
Anyone Can Die - Though usually, they return.
Axe Crazy - Induced by some plots and curses, such as the Heads Will Roll curse. Characters came down with the irresistible urge to behead each other.
Back From the Dead - Characters who have died in canon can be played in the game and characters who die within the game are revived in an undead state; both are known as City dead. Also applies to curses that carry death exemptions, where killed characters are revived afterwards without consequences.
Baleful Polymorph - The Safari Day curse, which changes characters into animals, among many others.
Big Damn Heroes - Whenever there's danger, this will burst through like nuts.
Bishie Sparkle - One curse caused City!dead characters to sparkle in sunlight.
Body Snatcher - During a plot involving alien slugs.
Breaking the Fourth Wall - The popular 4th Wall Day curse, a seasonal regular.
Brought Down to Normal - Curses such as Average Joe rob characters of superpowers.
Censor Box - Averted with the curse Black Bars Prevent Mental Scars.
Chivalrous Pervert - Several.
Crack Ship -
Crazy Awesome - A good number of the curses.
Crossover Ship
Crowning Moment of Awesome - There's typically one happening nearly every other day or so.
Cute Shotaro Boy - Look no further than Luca.
Deadpan Snarker - Many characters
Death Is Cheap - Characters can be resurrected after even the most horrific of deaths.
De Power - Although not strictly enforced, it is requested that very powerful characters be toned down in order to keep the game relatively fair.
Distracted By the Sexy - It's highly common.
Dream Land - Characters were trapped here during the Nightmare Vortex curse.
Easy Amnesia - Stems from various character reboots and old characters being brought in by a new player.
Ethical Slut - Certain curses will make the female characters become this.
Failure Is the Only Option - Characters' efforts to escape on their own always result in this.
Fan Service - Some days, the players just cater to their fellows and readers.
Five Man Band - The deities:
- The Hero: Mouse
- Anti Hero: Bertol
- The Smart Guy: Laszlo
- The Big Guy: Rumblelina, Loud is big
- The Chick: Sabine
Flat What - Uttered by every character during some absurd situation. Which at the moment has gone over 9000.
Genre Blindness - Justified in many cases due to characters originating from alternate times or worlds.
Genre Savvy - Some characters, especially those from canons set in modern-day Earth.
Girl On Girl Is Hot - Umi and Fuu + Compelling Imperative to Kiss = AWWW RIGHT. Giggity.
Ho Yay
Les Yay
Loin Cloth - He Who Kills sports one.
Memetic Mutation
- Yo City- Yo, City, I'm real proud of you, and I'm gonna let you finish, but this was the best curse OF ALL TIME!
- BZZRZRZRZRZRRZZZ- Vuvuzelas were everywhere
- The Curse Your Curse Could Smell Like
Musical Episode - The Sing and Shout curse.
Not What It Looks Like - Everyone has these moments but Huey Freeman looks like he's becoming the reigning champ of this trope.
Overnight Age Up - The Age Reversal curse. Characters can become either older or younger.
Play By Post Games
Race Against the Clock- In a much more indirect way. The clock counts down to the end of all worlds.
Running Gag - Considering how long this game has been going, there's a lot.
Sibling Rivalry - Characters who band together during the Family Day curse.
Sinister Subway - The Midnight Express Train event. Characters trapped on a nightmarish train couldn't leave until the event was over, while mysterious and bloody murders took place in various compartments.
Spirit Advisor - Due to one curse, some people get their own little Dæmon.
Status Quo Is God - Anything that might change the direction of the game is reset in some way by order of the mods. One of the main complaints against Poly.
Testosterone Poisoning - The Old Spice curse.
Trapped in Another World - The basic premise.
The Undead - City!dead characters
The Woobie - Everyone takes a turn at this. EVERYONE.
Worthy Opponent - Every character typically has at least one.