Mega Heracross is bulkier than its previous form. Thin orange markings now rim its head, hands, and shoulders. Additionally, there is a half-circle, orange marking over its eyes. It now has a long, pointed nose that curves slightly upward. Its back now lacks wings and is completely yellow. The horn on its head has grown into a large, simple spike with two smaller spikes on the front. The antennae have lengthened as well, and now have ovoid tips.