Ultimate Kaioken

Transformation taken place when the Kaioken technique is used in an enraged mood. Goku uses the Ultimate Kaioken when his Super Saiyan transformation fails to defeat Alternate Frieza. The Ultimate Kaioken is stated to be better than Super Saiyan 2 but it only lasts a short time. The Ultimate Kaioken with Super Saiyan 3 will mean Ultimate destruction.

Appearence
The user turns a very dark red and his/her eyes become a dark blue. The user's strength also increases heavily and so does his/her power.

Power
Alternate Vegeta read the power level of Goku in this form, reading it as 410,000,000. During the fight with Alternate Frieza, Frieza's power level is 18,000,000 compared to the power level he had on namek during the real fight with this timeline's goku and frieza which frieza only had about 12,000,000.