For better or worse, President-elect Donald Trump vowed to shake up the political system.

Because he has already broken with convention multiple times, the #TrumpFirsts hashtag trended on Twitter over the weekend as users recalled the traditions he’s eschewed and imagined other (sometimes dangerous) precedents that he may soon set.

Here are some of the best posts from the @HashtagJones1-created game that we’ve seen so far:

First president to be the last president ever. #TrumpFirsts — Corey Miller (@StopEatingBees) December 3, 2016

Messing up 40 years of diplomatic relations with China in a single phone call. #TrumpFirsts pic.twitter.com/aK8raniKtX — Hashtag Jones (@HashtagJones1) December 3, 2016

Censoring the American people by Twitter blocking. #TrumpFirsts pic.twitter.com/2Gtf6CW1Yx — Portmanteau Jones (@SadlyCatless) December 3, 2016

#TrumpFirsts: first presidential candidate to openly mock a United States veteran, war hero, and prisoner of war and get elected anyway. — Lauren Moore (@dlmluckytiger) December 3, 2016

First president to expose America's ugly racist underbelly... by putting it in charge of the country. #TrumpFirsts — Ben Hooper (@BenHooperWrites) December 3, 2016

First president to cause a historic democratic landslide for the next few elections, hopefully. #TrumpFirsts — Brandon Cloud (@theclobra) December 3, 2016

First President to have a meltdown over an SNL sketch. #TrumpFirsts — Juan, P.E. (@jrivera64) December 4, 2016

First time Mickey Mouse shakes his head in utter shame everytime he walks by the Hall of Presidents at the Magic Kingdom #TrumpFirsts — Evangeline Ling (@EvangelineWWE) December 4, 2016

He's the first presidential nominee to claim an election's rigged, that there was voter fraud, yet sue to stop a recount.#TrumpFirsts — Craig Rozniecki (@CraigRozniecki) December 3, 2016

Rename New Mexico to Mexico and then build a wall around it.#TrumpFirsts — Jeff Dwoskin (@bigmacher) December 3, 2016

#TrumpFirsts

First to be impeached before inauguration — Miss Texas 1967 (@MsTexas1967) December 3, 2016

#TrumpFirsts First US President elected by Russia — sarah apfel (@apfel_sarah) December 3, 2016

Installing a gold tanning bed in the Lincoln Bedroom. #TrumpFirsts pic.twitter.com/b9EMZhqjRe — Portmanteau Jones (@SadlyCatless) December 3, 2016

First President elected mainly out of spite



#TrumpFirsts — Dreamweasel (@Dreamweasel) December 3, 2016

First President Elect to google "How to be president of the United States of America"

#TrumpFirsts — Queen Of Spades (@SinCityChiGirl) December 3, 2016

Moving into the White House without the First Lady. #TrumpFirsts pic.twitter.com/9pHK4yl4s5 — Hashtag Jones (@HashtagJones1) December 3, 2016

First President to have 5 kids by 3 baby mammas. #TrumpFirsts — Inez Tyler (@TylerInezktyler) December 3, 2016

#TrumpFirsts 1. First president to declare war on a cable news network. — Max ♏️🦂 (@maxpick) December 3, 2016

#TrumpFirsts

Live tweets his own State of the Union address. — Heathercore (@heathercore) December 3, 2016

First President to drop an "F" Bomb during the State of the Union #TrumpFirsts — View from my Office (@viewfrommyoffic) December 3, 2016

First president to yell "YOU'RE FIRED" after entering each of the nuclear codes #TrumpFirsts pic.twitter.com/ovvoOws034 — Tamara Rose (@misstamerica30) December 3, 2016

#TrumpFirsts Uses eminent domain to turn lawn of 1600 Pennsylvania Ave. into limo parking lot for Trump International Hotel Washington, D.C. pic.twitter.com/XOuRIsPCIt — The Hashtag Game (@TheHashtagGame) December 3, 2016