Infinity Nikki ability outfits explained

Infinity Nikki has tons of different outfits and accessories. These aren't just to make your character look cute, but also can be used to unlock different abilities or solve various quests. Knowing how to unlock each outfit and gaining them is needed to help the story progress. Often, you need Whimstars to unlock the sketches for main outfits, so do collect loads of them!
Ability Outfits

This is the first outfit you get in Infinity Nikki. You can also use it to dash down onto objects to break them. It's a very useful one!

This is the second outfit you get in Infinity Nikki. This outfit is used to jump and glide around the map, so that you can get further.

Grooming animals can allow you to gain new resources, which are used to craft more outfits and accessories.

Bugs are another resource in the game. You can use this outfit to catch bugs around the map.

This outfit comes with a fishing pole, so that you can fish! Fish are another resource used for crafting.

This is only useful in terms of quests, where you need to fix the power outages.
There are also upgrades that can be done to all of these ability outfits. You do need to use the abilities to gain more Insight, which then allows you to unlock the Sketch using a combination of Bling and Whimstars.