Negative kaioken

The negative kaioken is a technique that looks like the kaioken, except it is blue. It also uses up much less energy, a normal negative kaioken drains no extra energy, all other levels drain energy as much as a normal kaioken would. However, to use a level of negative kaioken, you must have a bit of experience with its normal form. ( so to use a negative kaioken x10 you must first learn to use normal kaiokenx10 effectively, so higher levels require more training. Kinino, a Kai from another universe invented it. It is the favored technique of kritan ( alternate krillin who can actually fight as old Kai unlocked his sleeping powers, and the negative kaioken still increases his power.