Are you feeling manly? Manly enough to join the Mobile Trench Brigade and fight the evil Tubes in Double Fine's new XBLA game Trenched? Well, here's your chance to prove it.

We've got five download codes for Trenched to give away to five worthy Bitmobbers. But we want to make sure you're well-versed in the game's unique setting and style first. Fortunately, Trenched Project Lead Brad Muir shared some of the title's reference materials with us in a post last month. If you want to have a fighting chance against Vladamir Farnsworth's evil army, you'll need to study up, soldier.

Here's how to enter:

1. Head over to Brad Muir's post and examine the magazine covers there.

2. Find the answers to these three questions:

• Who is overrunning Cape Cod?
• What danger lurks in the Serengeti?
• Where are the "brothel islands"?

3. Send an email to letters@bitmob.com with the answers -- put "Trenched Giveaway" in the subject line.

We'll give you until midnight Pacific Time on Friday, June 24 to enter. Then we'll select five correct responses at random.

Sound good? Then man up and get reading!