Iron Lung has just had a major update that includes a 'Markiplier mode'. This indie horror game grew in popularity after the YouTuber did a full playthrough last year that gained over 8 million views, and he enjoyed it so much that he is currently directing and starring in an Iron Lung film adaptation. The latest update adds a handful of cheats, 'Markiplier mode' being the silliest new addition. Once activated your vessel is plastered with multiple Markiplier meme faces from top to bottom... Read more.