Kingdom Rush Alliance - “Tangled Up” achievement

This video shows me earning the “Tangled Up” achievement in Kingdom Rush 5: Alliance, awarded by defeating the first boss of the game, Goregrind without letting him jump on Impossible difficulty. The best strategy is to have three Arcane Wizards at the top right of the map, all of them having Disintegrate maxed up and powered up. Just make sure the ability is not wasted on weak enemies during the battle.