It looks cute. Are you making it by RPG maker? I used to use that once, very short game though.
For quests, I don't know what would be suitable. Myself, I made one quest like to find someone or item, adding side quest as hint where person / item would be. I rather go to the Wasteland than living in this TIN CAN!
Fallout - Love it. Let's get going, Ian. Let's try that cape.
Fallout 2 - Meep Firegekkos!
Fallout 3 - Awesome!