I'm not really a side-scroller-game kind of guy, but I know millions of people are, and this takes the biggest side-scroller and takes it into the FPS arena. The graphics are cool, and I wish the whole game was like this! There's also a behind-the-scenes video where the guy who made it (Brandon from the Freddie Wong channel) talks about how it was created. Enjoy!

Here's the BTS video: