The ninth installment in the WarioWare series, it was released in PAL regions in July 2018, and in North America and Japan the following month.

Similar to previous entries, in WarioWare Gold, the player is tasked with completing consecutive "microgames" at increasing paces.

The game's creative director, Goro Abe, put careful planning in determining which 300 of the 1,100 microgames across the series would be featured.

Gold received generally positive reviews, being praised for its graphics, additional modes, and the introduction of voice acting in multiple languages.

As is tradition for a WarioWare game, the player is tasked with completing "microgames"—various minigames with very short time limits—in rapid succession.

The rest of the game consists of self-contained vignettes for all of Wario's friends; these range from Jimmy T trying to impress two girls at Sapphire Street, Mona going to Joe's Clothes trying to find a dress to wear for her party, Dribble and Spitz fighting off UFOs with their space-faring taxi, 5-Volt doing a workout to become fit, Ashley and Red fighting a demon known as Hungraa, Dr. Crygor and Mike coming across one of Crygor's old inventions, Doris-1, in the spooky Agate Forest, 18-Volt engaging in a rap battle with newcomer 13-Amp to win back a stolen game console at Emerald Street, Penny trying to cure Dr. Crygor after her elixir to help make her a mega pop star gives Dr. Crygor a stomachache, Kat and Ana mistaking Mrs. Munches, a gourmet master, as their ninja trainer while trying to get ninja learners permits at Diamond City Castle, Fronk helping 9-Volt realize that math's fun, Young Cricket and Master Mantis training at an amusement park, Orbulon trying to acquire pigs in order to complete his order at a fast food restaurant called Gigantaburger, the hosts of the Sports and That's Life themes, along with Mike and Fronk, partying at Club Joe, and the hosts of the Fantasy and Nintendo Classics themes, also with Mike and Fronk, having a potluck at Peridot Campgrounds.

Returning the pot to Lulu after she reveals that it is actually Luxeville's public toilet, Wario attempts to flee with the money he made from the tournament when he is intercepted by his friends.

Meanwhile, Lulu returns to Luxeville with the pot, only to learn that the townspeople had bought a new high-tech toilet in her absence, making her whole journey a waste of time.

[9] According to Goro Abe, the game's creative director, despite most microgames appearing in prior titles in the series, many of them were reworked from scratch.

After he determined the results, he ranked the microgames based on the top picks from the staff, as well as which ones had easy-to-understand rules and games that have not aged well.

Full voice acting was included for the first time in the series, as the development team felt that it would lead to a deeper connection between the player and the game.

They also believe the change made the characters feel more alive, although Abe said future games would not necessarily have full voice acting.

[8] While the game was released after the launch of the Nintendo Switch, Abe ruled out porting WarioWare Gold to the platform, stating it would "come with a number of issues" and that it would be difficult to reproduce "the same sense of fun".

featured a large number of collectibles centered around the gyro and touchscreen as both technologies were still fairly novel at the time, the team felt such unlockables were unnecessary for Gold due to how commonplace both forms of inputs had become.

[19] Despite being a collection of microgames across the series, critics such as Nintendo Life and IGN appreciated the additional work done by Intelligent Systems.

[12] Most lauded the introduction of voice acting,[23][21] with Christian Donlan of Eurogamer joking how the addition, alongside a new graphics style "could, conceivably, be the only thing that's been missing from your life until now".