When Boris bikes by the car-lined street, his black shirt with the party-hat-wearing skull turns into the red one he wore earlier, before returning to the black decorated one.
Kwamie never says "Earth" to activate his ring from causing the minor quake that topples the statue by the window.
When Boris breaks through the window, he lands on the floor and his arms get cut and his arms bleed on the floor, then he gets bandaged up. When Boris and the Planeteers are at the top of the tower and he starts craving more Bliss, the bandages on his arms are gone. Then when he falls down as he dies, his left arm is bandaged again. Then in the shot when the Planeteers say, "Go Planet," the bandage from Boris' right arm can be partially seen.