Clawswipe Colosseum in Bowser’s Fury is home to a couple of bad guys that you have to take out in a ring, as well as hidden Cat Shine Shards. On Clawswipe Colosseum, use the Super Bell to turn into Cat Mario, which allows you to easily scale the walls.
Clawswipe Colosseum Cat Shine Shard 1 of 5
The first Cat Shine Shard is to the left of the gate, sitting in a little pool of water outside of a colosseum window.
Clawswipe Colosseum Cat Shine Shard 2 of 5
The second Cat Shine Shard is inside the colosseum, which you can access for the first time through a small entrance in the water. (After defeating Boom Boom once, you’ll have to climb some blocks along the side of the colosseum.) It’ll be in an alcove to the right of the entrance.
Clawswipe Colosseum Cat Shine Shard 3 of 5
The third Cat Shine Shard is under the platform that you fight Boom Boom on, opposite of the colosseum entrance.
Clawswipe Colosseum Cat Shine Shard 4 of 5
The fourth Cat Shine Shard is at the top of the colosseum, along the edge of the top, facing the island’s gate.
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The last Cat Shine Shard is floating in the air. You’ll need to aim Mario carefully using the spring to grab it.