In the first area, once you reach the second Skeleton Morning Star, get rid of it and then attack the left side of the right platform.
Wondering how to reach the unlockable? Well you can stand on the rock below (if you haven't looked at the large ass pic to the left yet). :)
Sound Item No. 28.
In the second area, walk to the end and break the wall and continue.
I'm lacking on comments on this pic. Just get the damn unlockable.
Sound Item No. 29.
You need to unlock Maria from Stage 2 in order to do this. Once you get to this area, drop from the left side, break the crates blocking your way and start pushing the dark colored crates until they fall into the pit.
After following the dropping crates, go left until you see a spot to slide into.
Sound Item No. 30.
Once you get to this area, drop from the left side, break the crates blocking your way and start pushing the dark colored crates until they fall into the pit.
You need Terra's Necklace from Stage 3' to break the wall.
Sound Item No. 31.
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