Walt the Linerat was never like all the other linerats... When the other Linerats would stand in the midst of battle merely functioning as food for the enemies, Walt had greater goals in mind.

At early age he felt he was destined for more, he grew up in a poor family, father a painter and his mother a lawyer, the tension between the artistic and the intellectual mind of his parents created an agony not fitting for a child to witness, a separation was inevitable.

The calling for his true destiny came when Walt was merely 9 years old. He was often picked on at school by other more fortunate rats. One day, when Rogre the Rat Ogre was flushing Walts face in the toilet, a Blitzer came out of nowhere and blitzed Rogre who was bullying Walt. Even though the Ogre was bigger, the Blitzer's courage brought him down and knocked him out, he missed the next class. The unnamed hero helped Walt out of the toilet and said.
"- Do you know what they call a Quarter Pond in France?"
- no?
"- A royal flush.. " *ba dum tss*

Even if the Blitzer was making fun of Walt,. he still helped him. Since that day Walt has wanted to become a Blitzer, even though the Blitzer literally made no implications what so ever that Walt should try that. Make no mistake, noone in the village wanted Walt to become anything, it's all in his delusional mind and he will most likely die a painful death.

But like 50 Cheese said, Get Blitz, or die trying.. In this case it would be more like, Get Blitz and die trying.