Okay, I can't help much then. I've never touched hybrid BASIC 

Could you specify what exactly do you have problems with? Like, do you need to know how to do tilemaps? Do you want to know how to have random battle encounters while walking? Do you need ideas for enemy, magic, item or weapon names? (I would probably keep weapons out of this if it's your first graphical game ever so you can familiarize yourself with that type of project). You may want to read a bit on TI-BASIC Developer or TI-Freakware/Cemetech tutorials, such as this http://tifreakware.net/tutorials/83p/b/tifw/les8.htm (This explains homescreen collision detection, but there are several other ways to do it) or http://tibasicdev.wikidot.com/starter-kit . If you use xLIB or Doors CS you can also check http://dcs.cemetech.net/index.php?title=Third-Party_BASIC_Libraries for more info on how to use these commands.

You can also check the TI-BASIC sub-forum here. If you don't understand something in particular and cannot find any info, feel free to ask in the TI-BASIC section and maybe post some code too so people can point you in the right direction. (Note that people will not do the entire coding work for you, they'll help you do it.)

Here's a tutorial on xLib Tilemapping:

http://tibasicdev.wikidot.com/xlib-tutorial#toc5

I kinda like the look, although I would make the letters for it bolder. Also remove the weird bar in the second D and the O at the bottom.

Well, the calculator limits what and how I do it. But yeah I'll fix it. (weird bar wise and curved D's and S's.)

heres an updated main menu:

http://img600.imageshack.us/i/pic1n.png/

hmm, strange, does not look real...

I agree with scout, maybe jazz it up some more, man!  like add a RPG or sword or a mushroom cloud backround