During partial transformation, Gaara loses the last remnants of human self-control. His already fragile psyche collapses under the pressure of Shukaku's chakra. The tailed beast's voice in his head becomes deafening, demanding blood and destruction. Gaara stops distinguishing between friends and enemies — he attacks everything that moves. His usual cold cruelty is replaced by animalistic rage devoid of any calculation. He lets out incoherent screams mixed with beastly roars. Yet in rare moments of clarity, he feels not pain but ecstasy from his own power — he finally becomes that "ultimate weapon" everyone wanted him to be.