How To Unlock All Crossover Outfits

Luchador's Outfit (Guacamelee)

Use either Spartan Sandals, Spiked Boots, Hayabusa Boots, or the Hayabusa Gauntlets to kill a Corpulent Zombie.

Penitent's Outfit (Blasphemous)

Use the Face Flask when you are at low health.

The Magician's Outfit (Hyper Light Drifter)

Equip the Drifter Outfit and then pick up the Hard Light Sword. Doing this will unlock the Magician's Outfit.

Little Bone's Outfit (Skul The Hero Slayer)

Reach the Graveyard's entrance, and Ground slam the special tombstone located near the spikes.

Vessel's Outfit (Hollow Knight)

Once you acquire the Pure Nail, use it to bounce eight times.

Explorer's Outfit (Curse of the Dead Gods)

Complete a run without taking any trap damage.

Ironclad Outfit (Slay the Spire)

Collect three Keys. The Emerald Key is located in an Elite Room, the Ruby Key can be purchased from the Food Shop, and the Saphire Key is located in a Choice Altar.

Familiar Outfit (Terraria)

Enter the Prisoner's Quarters using the Cavern Key. Using the Homunculus Rune, throw the backpacked item into the Lava.

Shovel Knight Outfit (Shovel Knight)

You will find a Shovel Knight painting in the High Peak Castle. Break this painting with a Shovel.

JZero Outfit (Katana Zero)

Kill 15 enemies in succession with Hattori's Katana's dashing strike. If you take a hit during this, you will have to do it from the start.

Modernized Bomber Outfit (Hotline Miami)

Break a door to stun an enemy and then kill the enemy with the Baseball Bat.

Commando Outfit (Risk of Rain)

Find an altar that you can interact with. This will spawn two shadow imps that you must kill.