The game boasts 22 playable characters (Mario, Luigi, Peach, Daisy, Wario, Waluigi, Yoshi, Toadette, Toad, Rosalina, Donkey Kong, Birdo, Bowser, Goomba, Shy Guy, Koopa Troopa, Monty Mole, Bowser Jr., Boo, Spike, and newcomers Pauline and Ninji[2]) which makes for the current largest roster of playable characters in the Mario Party series.

The board mechanic of allies from Super Mario Party makes a revamped return in the form of "Jamboree Buddies".

Jamboree Buddies last for up to three turns, activate a board space effect twice and grant players different abilities that vary depending on the one obtained.

Super Mario Party Jamboree contains a single-player mission mode called the "Party Planner Trek", in which players help various NPC's by either talking to them, fetching an item or playing a minigame in exchange for Mini-Stars which are then used to further progress in the mode and unlock hub customization options.

Paratroopa Flight School has three sub-modes which allow players to compete in time-based collection matches, cooperate in carrying characters to destinations or freely fly around a map without any predetermined objective.

"Koopathlon" is a race where twenty different players compete to complete a set number of laps around a board via collecting coins in minigames.

Players can set up private online lobbies protected by a passcode in order to play with friends.

[12] In a more critical review, Eurogamer's Katharine Castle wrote that Super Mario Party Jamboree "has the misfortune of not being very fun, and mistakes the volatility of chance and happenstance for being the same thing as competitive satisfaction that comes from playing a good game well".

[11] The game performed well commercially, debuting atop the charts in Japan with retail sales of 227,569 copies.

[19] It also debuted atop the charts in the UK, enjoying opening week sales that were 35 percent higher than that of Mario Party Superstars.