Gives a very old retro vibe, I very much like how it was executed. 

Though, I got really confused on a few of the aesthetics (i thought the final area spikes were just decor lolol), or the mildew bricks in the background were platforms.

It's also clunky, but from what I know, that's pretty much how the older games worked too (which doesn't help since I rarely played retro games).