Xbox Live Gold users are currently able to download Splosion Man for free, even though it isn't officially part of this month's Games with Gold line-up.
The explodey platformer can be downloaded from the Xbox Store for nothing if you're a Gold subscriber, along with the two new Games with Gold titles Mirror's Edge and Assassin's Creed Chronicles China.
It's backward compatible with Xbox One, too, so if you've ditched your Xbox 360, you're still able to play it on Microsoft's new console.
Splosion Man launched back in 2009 and was one of the first games developed by Twisted Pixel, which later went on to develop Comic Jumper, The Gunstringer, LocoCycle and sequel Ms. Splosion Man. It's currently developing a new title for Oculus Rift.