Blocky and Bubble

In Take the Plunge, Blocky uses Pin and Needle to nearly pop Bubble. Bubble is bothered by this, asking "What was that for?" When picking the teams, Blocky agrees to beat up Bubble for Flower, since Snowball wouldn't, and chases her a bit before popping her with his leg. In Barriers and Pitfalls, as a part of Blocky's Funny Doings International, Blocky drills a hole into the BRC and pours tacks in, popping Bubble infinitely.

In Crybaby!, Blocky skis directly into Bubble, popping her, and doesn't acknowledge it.

In Don't Lose Your Marbles, Bubble finds herself a ball, but Blocky kills her and takes it.

In Half a Loaf Is Better Than None, after acting scared in response to the next hurdle for the third time, Blocky tells her "that's enough, Bubble."

In Vomitaco, Blocky throws a bowling ball at the alliance.

In Bowling, Now with Explosions!, when Bubble knocks over no bowling pins, Blocky laughs. Later, when presented with the opportunity to subtract points from anyone, he decides to start by draining all of Bubble's points.

In Return of the Hang Glider, Blocky would prefer Bubble not win Dream Island, because she's fun to kill.