Trainbo

You are Rambo! Well, actually Trainbo...but that's even better! Because you are in the Wild Wild West! And on a train! And you don't have any guns! Well...that last one might not be that great, but you know what - the bad guys don't have any either! 
You are in that part of the Wild Wild West where folks didn't have money for guns, or...some other reason. Either way, punch some fellers, kick some serious breeches and claim your seat on the cactus throne! 

Move - WASD
Jump - SPACE
Punch - LMB (left mouse button) - faster, less range.
Kick - RMB (right mouse button) - slower, bigger range.
Climb - E (in case you fall off the wagon :) )

Pause - Escape (I know it says TAB, but that's one of the things that got scraped during the last minute build rush :) )

Known bugs in the Jam version:

• If you kick while hanging on the side of the train you'll get stuck.
• Pause is initiated by pressing ESC and not TAB as the tip in-game says.