You use either a slim burble from a whole in the wall or a slim burble u have caught

where can i get the slim burble

well first u need then eagle stone, to get that,all u have to do is go down the river
where the boat first dropped u off when u got to heliopolis, then use the fire armidillo,
to burn the crates with scarabs in them, then u will find the eagle stone in it. go back
up to dry land, and u will find a weird disk with a eagle on it, use the eagle stone, then
use it again on the other one, then forward, and u will se a wall covered with pots. break
the pots and the slim burbles will appear.