Developing a Concept for a Game and Progress Thus Far

The project given to me is to create a video game prototype from a developing concept that could be commercially appealing. The game that is going to be developed must be a believable one that could realistically be used in marketing.  So far, my plan is to create an RPG game that will utilize either flash(a 2-D game engine)  or Unity (a 3-D game engine). The on-going title of the game I have is Classroom Crusader. The plot revolves around a local school nerd named Dan. He often falls asleep during lectures. His teachers ever growing frustration at his inability to focus in class always lands Dan a trip to do errands for the teacher to keep him motivated. As Dan drops off papers for his teacher he runs into all sorts of people that are typically associated with school orientated stereotypes like bullies, class clowns, jocks and other sorts of groups of people. Between this and class, Dan also seems to find escape from it by daydreaming. In this he travels to his own sort of dreamworld where he interacts with his imagined environment and it's various inhabitants. Little does Dan know of how real it will soon become. The RPG comes into play with the various enemies that Dan runs into. At school when Dan is going through the halls Dan might run into a bully. When this occurs it will go into battle mode where Dan will have an HP (hit points) bar for stamina, and a PP (power points), for special attacks. To the left you will see the options bar which indicates what Dan can do, which includes Attack, Special, Item and Run. The weapons at school are fairly trivial, for example the bully's weapon of choice might be a spit ball straw. Other weapons could include baseball bats, yo-yo's and other such things. In the dream world, Dan would be armed with weapons that one would expect to see when you say weapon, like spears or swords.  The enemies in the dream world would be more fantastical to fit the expressiveness of Dan's imagination. I've done some preliminary sketches on this and hope to get some feedback on my ideas if anyone is up to it.  The pitch phrase I got going here is; "A school adventure RPG game full of bullies, daydreaming, nerd rage, and class clown antics!". It's kinda cheesy, but I thought it fit into the kind of game that I am developing. I wanted to create something that related to the sympathies of people that have a sort of love/hate relationship with pop culture and I wanted to mix that with elements of fantasy and adventure archetypes to create something that could be considered enriching to the experience of the average gamer. Updates are sure to come.