Some men like boobs, some don’t. Ninja Gaiden Σ 2 has bouncing boobs in the game. This is probably what said men look like watching breasts go up-and-down up-and-down.
https://lastchance.cc/see-ninja-gaiden-sigma-ii-boob-bouncing-in-action-5355958%3C/a%3E%3C/p%3E
Don’t miss the old man in the bathrobe with the glass of red wine. He’s relaxing.