Kirby 64: The Crystal Shards: Part 27: Ripple Star 3 (Just 2 Shards, For Now...)
Ripple Star is actually a shorter world, like Pop Star was. Ripple Star 3 is the last regular level in the game.
This level has Kirby venture to the very top of the Queen Fairy's corrupted palace.
However, along the way, you will go through different rooms that ambush you with practically every enemy you've encountered throughout this whole game. This also means, though, that you can get any Copy Ability and Ability Combo that you want as some point of this level.
One of the Crystal Shards is in the third enemy room at 1:37. It's underneath the floor with the red and orange sun, which means you'll need the Fire/Needle ability, which lets Kirby shoot fire arrows.
Before that, the first Crystal Shard will automatically appear after surviving the first enemy room.
After both of those, the last Crystal Shard of this level will automatically appear after surviving the fifth and last enemy room of this stage...
...buuuuuuuut I went ahead and ignored that. I'll get it later.
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The enemy rooms are connected into each other through stair rooms. Take note of the ominous shadow that floats above the last one...
Also take note of how it's right above Kirby and his friends while's they're having one last picnic...
The final boss is coming...