Here's a link to a DEMO for Broforce (Free Online Alpha)

[YipYapYoup (QC)]

If you want to test it out before buying it, here's a link for the online alpha released months ago. You can unlock a lot of bros, play with friends online and it gives a really good idea of the final product.

http://www.freelives.net/BROFORCE/OnlineAlpha/OnlineAlpha.html

Just bear in mind that if you download the standalone build instead of loading it from the website you won't be able to play online.

Have fun!