To get the disc, have each player place a bomb in front of one of the 2 huge, stone fists flanking the gate.
Stand on the square pressure pads to open the gate. The fists at first prevent the gate from opening all the way. Detonate the bombs in unison to blast the stone fists into the air. The gates then open completely.
Quickly step off the pads as the fists fall back down. They should then prevent the gates from closing all the way so you can take the FIRST SUN DISC.
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