Run to the cheese, then carefully run back, making sure not to fall into the hole at the bottom of the ramp. It is possible to avoid the bombs by jumping towards the left and looping over the bomb. You can also try to stay at the back of the pack and allow the other mice to block the bombs for you.
It's important to remember that the bombs hitting other mice will also effect you if you are nearby, so you should stay away from them.
You can bomb-jump in the same way you lava-jump IF you are either a professional or lucky.
There is no Shaman on this map.