This strategy is much faster, at the end I destroy the cannon with Nitro, if I keep Havok I can get to the cannon faster but Havok takes a while to destroy it, and ends up 1 second slower. At the beginning I use the mines to push me forwards. Then I touch the electrical wall at the same time I get hit by the cannon and manage to get past it without waiting for it to turn off. Towards the end I leave Nitro as close as possible to keep going and manipulate (leave my mech on the way so it can't follow and leave it out of the screen) the enemy Havok to dissapear, if its shots hits Nitro when the door opens, it will fall... Then I use a trick to get inside the cannon and evade damage (Havok can do it too with a "push"), I jump while inside because when the cannon starts exploding Nitro falls (Havok doesn't). If Nitro carries a rocket launcher it can attack the cannon from below even if it falls, but I don't pick one because its out of the way and I don't fall anyway.
