Sparks are a new feature in Mario + Rabbids Sparks of Hope, and they play a key role in battle. Each one has an ability that aids Mario and your team. These can be upgraded to increase their potency and power. This may leave you wondering how to upgrade Sparks in Mario + Rabbids Sparks of Hope.
To upgrade your Sparks in Mario + Rabbids Sparks of Hope, head to the Sparks tab in your menu and press X. Here you can use Starbits or Star Potions to upgrade and level up your Sparks. Starbits can be fed in small quantities to partially fill your level gauge, whereas Star Potions will automatically level up your Spark.
How to get Starbits in Mario + Rabbids Sparks of Hope
You can get Starbits in a variety of ways. The most common is defeating enemies in battle, which rewards you more depending on the number of enemies you defeat. You also receive Starbits by completing Darkmess Puddles, which appear on the map as the planet's icon. Finally, you can solve puzzles around the overworld to receive Starbits.
How to get Star Potions in Mario + Rabbids
You can purchase Star Potions at the shopkeeper for Planet Coins. You can receive Planet Coins by completing Darkmess Puddles and other challenges across the map. This is the fastest way to upgrade your Sparks, as it automatically levels them up without needing to fill the level gauge slowly.
For more information on Mario + Rabbids, check out How to heal in Mario + Rabbids Sparks of Hope and How to solve the Riddle of the Sunrise Temple in Mario + Rabbids Sparks of Hope on Pro Game Guides.