I am not joking this is for real and this is what happend to me at a certain time during the game. I found out that if you go to the final stage where you fight Dark Yabu at a certain time, Vexx gives Dark Yabu the "One Finger Salute". I couldn't believe it when it happened to me and I don't quite know what time it happens.

Firstly you have to have acces to THE BELOW then go in the big dome of water and enter the orange tower.

You will find yourself infront of a big waterfall, move forward and turn the camera round infront of vexx.

You will see a yellow pole climb down it and look at the waterfall you will see two lives.

Jump in the alcove and get them, then kill yourself by jumping down with the waterfall and you will start infront of the waterfall, the two lives will be back.

Do this again and you will end up with an extra life.