To get up the cliff in level 2 of LEGO Marvel Super Heroes 2 switch to Thor and fly up to the top of the cliff. Use She-Hulk to break the glowing box in front of the door and build the platform:
Switch to Captain America and stand on the platform:
Switch back to She-Hulk and use Captain America to get a boost up to the handle. Use the handles to climb to the top of the cliff. Go over to the buttons to the left and stand on them with She-Hulk and Thor:
Switch to Captain America and build a fan. Use the fan to get Captain America up the cliff.