Beat the game.
It's a real shame the gameplay is so crap. The bulk of the game plays like a poor mans Contra, mixed in with god awful melee sections and Panzer Dragoon/Sin and Punishment-esque on rails sections. Its not absolutely terrible, but the game does feel like a chore to play most of the time.
But the writing and acting, hooooly shit. So damn funny. Tons of references to action movies. Totall Recall, Kickboxer, Timecop, Demolition Man.... I laughed out loud so many times throughout the game. There is a great joke every minute or so, way too many to mention.
Theres a ton of awesome extra unlockable content, too. Concept art, songs, a free theme, gamerpics, interviews, bloopers, avatar awards... youre geting a ton of stuff, more than most SE full retail games.
I'd recommend this game. Despite it's flaws.