I think they Heat and the Warrior are the same bike, just different years/color schemes. One of the giveaways is the color of the fenders, which yours is missing. You might be able to tell by the serial number but I'm not sure. I'm not sure what a Mini Baja is, unless you're referencing a modded Heat that you found in a Google search. If so, I think that's just the name someone gave their bike after the mods.