From that demo, all it looks like is one of those Time Crisis (or whatever they are, havent seen one in a while) arcade games where you occasionally have to actually do stuff, but it ends up being mostly done by pre-scripted actions. For example:
1: Pretend to swing your arms around like your holding a lightsaber to block imaginary lasers
2: After [insert amount here] lasers blocked, throw tank onto people. You actually have no part in pretending, you just watch it
3: Repeat, except this time by pretending to be realllly fast.
Shoot your lightsaber offscreen to reload
5: Slap Star Wars on the title, and include Darth Vader.