Former American Ninja Warrior contestant Warren James Li is taking burpees to the next level [1] — and that's not just a quote from his Instagram caption. Behold.

View this post on Instagram

[2]

Apparently when you get to a certain level of fitness, burpees are not enough [4]. If you're at the American Ninja Warrior competing level like Li, you must catapult yourself toward space, using a basketball hoop as leverage, do some calisthenics, crazy push-up tricks, and then do it again.

Li says #ChallengeYourself in his caption, but honestly, we feel challenged just watching that video. Holy crap.