To do this glitch go to training and go to any
of the firing range's. Once your there, place
each dummy in a stack in a row of one. Once
that's done place a target on top of the stack.
Then teleport your worm on top of the target.
Once this is done, set the water level up to
your worm, then bring it down again. WHOA! Your
worm is floating! Doing this repeatedly will get
you worm even higher!