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Infinity Nikki - How To Upgrade Ordinary Eurekas To Iridescent?

By Donato Greenholt | Last ModifiedFeb 27, 2025

As the fifth work in Nikki series, Infinity Nikki has added new elements such as open world exploration and puzzle games on the one hand, and on the other hand, it has effectively retained the dress-up gameplay of the series and organically integrated it with the new gameplay to show you a different Nikki game.

In terms of dress-up gameplay, Infinity Nikki’s Stylist Duels mechanism requires you to match clothes according to specific styles and compete with opponents. There is no doubt that on the basis of style matching, higher-star clothing and accessories will make your Nikki more competitive, and it would be even better if you can continue to add Eurekas for decoration - the rarest of which is Iridescent Eurekas.Infinity Nikki - How To Upgrade Ordinary Eurekas To Iridescent?

Introduction To Eurekas

Eurekas is a unique accessory in the game, located at the bottom of the makeup category in Nikki’s wardrobe menu at the game interface. More specifically, Eurekas can be further subdivided into heads, hands and feet, and Nikki can have up to three Eurekas for each set of clothing.

Like clothing, Eurekas are rated from 3 to 5 stars, and the higher the rating, the more points you get in challenges. Currently, you can get Eurekas through leveling up or any Warp Spire Realm challenges.

How To Get Iridescent Eurekas?

5-star Eurekas are already rare, and Iridescent Eurekas are a rarer version of them, which can be obtained by upgrading 5-star Eurekas to level 10. When a 5-star Eurekas is upgraded to the maximum level, its color will change to one of four potential options. If it becomes a rainbow color, it means you have obtained an Iridescent Eureka.

Although you need to have good luck to obtain Iridescent Eurekas, you will find that it is not more powerful than other full-level 5-star Eurekas after you get it. It just has a beautiful appearance. However, “beauty” should be regarded as one of the core ideas of Nikki series of games, so who can resist making their Nikki more beautiful?

How To Upgrade Your Eurekas?

First, find the Eureka tab and pull it up. You will see a drop-down menu on the right side of the screen with all Eurekas you currently own, as well as their current level and star rating. Next, select Eureka you want to upgrade from the menu on the right, and then click the yellow button in the bottom left corner to enter the upgrade window.

Here, you can see all the stats and data of the selected Eureka, and then click the box with a plus sign on the far left. The system will prompt you what materials can be used to upgrade Eureka, such as Shining Particles. In addition, you can also use 3-star Eureka to upgrade higher-star Eurekas, because 4-star and 5-star Eurekas are more useful for challenges.

Hopefully, this mini guide we provided will help you make your Nikki more beautiful and defeat other opponents in ratings and duels!

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