Only level 4 or lower Morphtronic monsters can be revived.
Revived monster is destroyed during the End Phase.
You can revive Morphtronic Scopen in attack position and use his effect to special summon a level 4 Morphtronic monster from your hand. You can then use them both to Synchro summon into Power Tool Dragon or other level 7 Synchro monster.
Revive a Morphtronic monster which you can then tribute with Morphtronic Slingen's effect to destroy a card your opponent controls. You can revive Morphtronic Vacumen in defense position to suck up an opponent's monster. The absorbed monster will then be destroyed when Morphtronic Vacumen leaves the field. For maximimum usage you can revive Morphtronic Vacumen, suck up a monster, and then tribute Morphtronic Vacumen with Morphtronic Slingen to get rid of 2 cards your opponent controls for the price of 1.