MUI (Mastered Ultra Instinct) Goku is a Saiyan. Basically you're screwed unless you have like FPSSJ Broly, Ultra Ego Vegeta, Beast Gohan, Beerus and the angels. When he is angry or enraged he says "YOU'RE GONNA PAY!!!!!" And does a Instinctive Punch which is like a Stronger Heavy Punch, it was used on Super Full Power Jiren.