This mod includes a few achievements you can get by doing certain things with chaos effects, or getting specific effect combos. Here's a list of all of them.
Time Wasted Successfully - Let Forced Geoguessr run out without reaching the target
Not getting out that easy - Restart the game with Forced Geoguessr active
You're Winner! - Win a race with Big Rigs Handling active
Money Broke - Reach 2 million in debt
Money Presence - Reach 5 million in cash
Something nice, not expensive - Have 7 dollars of cash
Butt Rights - Get Trans Rights and Buttsbot simultaneously and have it say Butt Rights
Is this even English? - Have all text modifiers active at once
Butt butt butt butt - Get 4 or more Buttsbots simultaneously
DJ Kuru strikes again! - Have 2 or more Wino Winos playing at once
Reach out and touch faith - Have 5 or more Jesuses on the map at once
LUDICROUS SPEED - Reach 1000km/h with Big Rigs Handling active
WE'VE GONE TO PLAID - Reach 2000km/h with Big Rigs Handling active
Ironic - Get trapped in Beach Ball Jail as a beach ball
If one wasn't enough - Get Gravity Field and Hyper Gravity Field at once
This effect actually works? - Have your popped tires fixed by Fix Car
World of Warcraft - Have all additional HUDs active at once
PepegaChopper - Become a Stuntplane-Maverick
Not so forced after all - Get Actually Forced Look Behind and Look Behind at once
Back to Normal - Get Australia Mode while Flip Screen is active
EZ Dodge - Survive an engine blow attempt because of Godmode
It Finally Happened! - Get your engine blown by a 1% chance effect
Deadly on Rare Occasions - Get your engine killed by Take Damage
Most Functional BMW - Get your engine blown while driving the M3
Blind - Get Portrait Mode and Anti-Portrait Mode at once
Blind again - Get two overlapping screen filters that fully cancel out
Vehicular Epilepsy - Get Rota(to)ry Engines and Walking Cars at once
Real Stadia Experience - Get Delayed Controls and Stadia Mode at once
IT DID THE THING!!! - Get the DVD Screensaver to hit the corner
Surely this won't break anything - Have a Jesus stay on the map for 1 hour
WHAT ARE YOU GUYS DRINKING?!?! - Have 20 effects active simultaneously
Too much for zblock - Reach 400km/h with Half-Life movement
System of a Down fan - Have 25 or more tables on the map
Is this a GTA IV reference? - Have 25 or more swingsets on the map
Blinded by Emotes - Cover the screen in 69 or more KappaGen emotes
Secret Bypass - Get the Pause effect while the pause menu is disabled
Colossal Skill Issue - Get 4House'd with a Skill Issue notification active
You've been struck by - Get all TRUCK effects in under 5 minutes
Flight School Complete - Win a race as a Stuntplane
Is this how helicopters work? - Get Rota(to)ry Engines while in a Maverick
I think I'm gonna hurl - Get Spinning Cars while in a Stuntplane
Most Wanted Space Program - Get flung 2km above the map
pepePoint - Get switched to a taxi while already a taxi
Bad Ending - Win a race with Cross' Corvette
RealTaxi - Win a race with a Taxi
Professional Trucker - Win a race with a Truck
NOONE WAS CONVICTED OF ANYTHING!!! - Get a circle of 10 or more cops in Witness Protection
Rasputin - Win a race in a heat 5 pursuit with all tires popped
Save(house)d - Get 4House'd while in a pursuit
Comrade Jesus - Get Jesus to kill a cop with a rocket
Skill Issue - Get busted by condition 1 cops
No Cheating - Try to jump to safehouse when busted
We did it chat! - Get a game over screen
Even The Odds - Shoot Jesus with a rocket
Malding Intensifies - Disable 5 or more effects
Back to the 70s - Win a game of Pong
Pong Master - Win a game of Pong in one hit
God Gamer - Win a game of Hardcore Pong
I applaud you, holy fuck - Win a game of Hardcore Pong in one hit
Grand Master - Get to Level 10 in Tetris
Better than Kuru - Get to Level 20 in Tetris
Competent Chat - Get 10 lines in Chat Controls Tetris
Legend of Rock - Hit all notes in Guitar Hero
-1 King - Miss only one note in Guitar Hero
Major Strumming Issue - Disable Guitar Hero
Snake? SNAAAAAKE!!! - Get 50 points in Snake
Pepegas vs Jesus - Meet Jesus in Plants vs Zombies
Rigged from the Start - Meet Super Jesus in Plants vs Zombies
Not Quite Secure - Get halfway through Password Game
Unhackable - Complete Password Game
Level 2 in Progress - Get halfway through Hardcore Password Game
Level 2 Complete - Complete Hardcore Password Game
The Rabbithole - Play a Chaos minigame
Record Setter - Set a high score on a minigame leaderboard
Local Idol - Hit all notes in Project DIVA
I'm angery - Miss only one note in Project DIVA
hisokeee would be proud - Get a perfect score on Let's Say The P Names!
Basically Just Any% - Have over 10 minutes of No Chaos
YEP POLE - Get pole'd
P OMEGALUL LE - Get pole'd twice in a row
Triple Donk - Get pole'd three times in a row
Polepocalypse - Have 100 or more poles on the map
Radar malfunction - Have 5 or more spawned radar blips at once
MAJOR SKILL ISSUE - View Samson's bio video
A Taste of Things to Come - Reach 1 hour of playtime
Slowrun - Reach 10 hours of playtime
Longplay - Reach 30 hours of playtime
We did it, chat! - Reach 69 hours of playtime
Take Your Time - Spend 60 minutes completely stationary
Sightseeing Tour - Travel 100km
Around The World - Travel 1000km
Frequent Flyer - Travel 10km with a flying vehicle
Keep trying, you'll get it - Attempt 500 races
Delayed Salvation - Find Immortal Snail Jesus over an hour after he spawned
God has left - Complete the easter egg sequence
Pepega Hunter - Collect all hidden packages
Freeloader - Smash all upgrade signs
Darius Who? - Get over 200k points in Horizon Mode
Skill Presence - Get over 100k points in one skill chain
This Achievement: Zolika1351 - Sit through the Chaos Credits
Our Omnipresent God - Get Jesus to spawn at NaN
No Wheels? - Get a ramp to spawn at NaN
Better with Friends - Play Chaos with 4 or more people in one server