This is a continuation of Celebi7242's riddles featured in a GameFaqs forum post under the PlayStation Ecco, Defender of the Future category. As I stated earlier I am not going to post the answers, I might post them but I want to see how many people can digest these and figure out the answer.
Sing to me and I will follow you I may have seemed useless, but I will help too. Sing me to follow, charge me to stop and sink Temporarily, away the power's guardian will slink.
Ties of cruelty bind The prisoner has only control of his mind Four to destroy, but first you will face A general Clan with a slow pace.
Switches on the walls, guarded by a shark Shut things down to leave the enemy in the dark Strike once, strike twice and again Ascend and follow the fish for the enemy's den.
Hidden in the floor I am a key to pass the door Take me and wait for them to grow careless Infiltrate and clean out the mess.
Eight to bring to power Two to energize the tower Two more to unlock the gateway Now it's time to ascend the mountain Make the three Exalted Ones pay! Claim your fourth prize, and travel to when?
Five to find and four to take Power your protector, centered in the lake We will act as the power's source For your foe and everyone's, show no remorse.
Boulders that swirl about The guardians, shut them out Bring the room to dark and seek my light But I'll warn you, I bring the beginning of a new fight.
Neither here nor there Tricky to find in a confusing lair Finding me is the only thing that's hard After you're done, find the ones who are marred Many battles they have likely won And will win this one, too, if you aren't quick to run.
Daylight shines its brightest Yet you can't see the sun Move the opposite of the lightest But finding how to do that isn't fun...
Infinitely dangerous, dark and deep Enemies abound, here a great power lies in sleep Familiar yet strange, you hesitate to use it here. Do your best to overcome your fear Take this power, touch one more Dash for the glowing, green and red door.
In the distance, see the hidden sunrise Or is it the sunset, on which the world also relies? Either way, it's something different from everything else there's been Swim in and out of all machines, your sonar is the the key to win Dive deep beneath the surface, then turn around and rise Jump across the surface, into another body of water and swim to the skies.
Don't stop until you see The path to make you free. So much to do, and time is running out... Nine to sing, nine times to charge Sing once more and watch the fall Of the core of the Foe, lifting the depressive pall Restore your world with this final sphere At last, the songs of your friends you can hear.
Three to defeat, one thing to gain Getting to the second is such a pain I block your way, guarding a triangular pathway Here, too, you have three to sing, to keep me at bay Behind you, the fourth; sing to it to clear the path As for the rest, you must do the math.
Dead as a moonless, silent night, You hear only the rush of water and pounding rain. If you want to proceed, to set in place what is right, Take a power, sing twice and blind your kind's bane.
Related: Ecco, Defender of the Future Riddles Part One
Source: GameFaqs - Ecco Riddles is back! *possible spoilers inside*