Bruce Willis I See Dead Arms One-Hops First Pitch

Bruce Willis has done a lot of cool things in his career ... but uh, this is bad. Like REALLY bad.

The "Die Hard" actor threw out the ceremonial first pitch at the Phillies game on Wednesday ... and it's pretty damn embarrassing, considering it didn't even make it to the plate before hittin' the ground!!!

Bruce Willis threw out the first pitch tonight and it bounced.

Listen to the crowd reaction \ud83d\udc42 pic.twitter.com/wzPQQrud6S

— NBC Sports Philadelphia (@NBCSPhilly) May 15, 2019A couple of things to address -- 1. Bruce was standing a few feet IN FRONT of the mound and he still didn't reach the plate. 2. How did the "Die Hard" theme music blaring over the PA system NOT get him in the…