Infiltrate Bowser's Castle and Start Bombing are objectives you'll encounter most of the way through Super Mario Odyssey, which follow on from Super Mario Odyssey - Crumbleden, Battle with the Lord of Lightning!.
You'll find our full walkthrough for them here, whilst you can head back to our main Super Mario Odyssey guide, walkthrough and tips hub for plenty more on all aspects of the game!
Infiltrate Bowser's Castle
From the Odyssey, run towards the big gates, which will open automatically.
Run straight through the group of Goombas, jump up onto the platform and use the Spark pylon to reach the next platform. Run over the checkpoint (Third Courtyard (Front)).
Hit the Pokio twice to possess it, then press 'Y' against the nearby wall to poke your beak into it. Now flick up, like a Pole, to reach higher ground. Repeat until you reach the top. Now use the Spark pylon to reach the Third Courtyard (Rear) checkpoint.
Jump over the barrier, turn right, jump over the gap (and through the gold rings) to land near a blocky enemy with a stone block. Dodge his slam attack, climb onto his head and do a Ground Pound to defeat him. A Moon (Infiltrate Bowser's Castle) will appear.
Climb the steps and pass through the open gates. Ride the Spark pylon to the Second Courtyard checkpoint. Collect the Moon Shard beneath the bomb hole, possess a Pokio, then take a right at the bomb hole. Follow the path to reveal a sunken platform with a Moon Shard over a brazier (watch out for Spinies).
Need more help? Our Super Mario Odyssey guide and walkthrough goes through every objective in each Kingdom, while our Power Moon locations can help you track down the likes of Cascade Kingdom Power Moons, Sand Kingdom Power Moons, Metro Kingdom and New Donk City Power Moons and more collectables. We also have Purple Coin locations for each Kingdom, and if you want to know what to spend it on, we have a hats list, outfits list, stickers list, a souvenirs list as well as a music list to kit out the appearance of both Mario and the Odyssey. Once you've finished the game, check out the free Balloon World update, too.
Head back to the bomb hole, avoiding the bombs, and flip across the gap with the bomb hole at the bottom. Collect the third Moon Shard as you go. On the other side, aim one of the bombs with your poke to hit one of the crates against the far wall, revealing a Moon Shard.
While facing the Power Moon stand, turn right and you'll see the fifth and final Moon Shard on a raised platform.
Poke and flick to reach it - the Moon (Smart Bombing) will now appear on the stand. Collect it!
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