After more than 23 years of Doom, I am still impressed how long we've come and what is possible with sourceports like GZDoom. The modder Alekv has proven once again that the only limit is your imagination (or your skills when it comes to scripts and stuff, but that's another story). He shows us impressively what's possible in his sidescroller jump&run mod Forest Adventure. Without further blabla, just watch the video and check the development thread.