Possible Themes Would Be Like........

- Weapons (or a particular type of weapon, IE - blades, guns....etc)
- Warzone (basically dropping bars based around a warzone type of situation)
- Boxing (dropping bars relating to a boxing match or anything that relates to boxing)
- Murder (drop bars based around murdering your opponent)

....Then you've got other themes you could use, more comical ones like,

- Diss Yourself (you should get that)
- Self-Glorification (obvious, and just for laughs, see who does it better)
- Glorify Your Opponent (self-explanatory)

....Then you've got your more basic simple themes.....

- Wordplay Battle
- Personals Battle

...and so on....

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