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A Bumper is an item in Super Smash Bros., Super Smash Bros. Brawl, and Super Smash Bros. for Nintendo 3DS / Wii U. In Super Smash Bros, it remains on the ground when thrown, damaging players who bump into it. There is also a Bumper floating above the Peach's Castle stage. In Super Smash Bros. Brawl, the Bumper reappears. Bumpers in this game can float in midair when thrown, making it possible to use them as deterrents for opponents trying to recover. Bumpers can also lie on the surface if thrown downward toward the ground.
In Super Smash Bros., if one is thrown and directly hits an opponent, it causes a significant amount of knockback despite causing only one percent of damage. In Brawl, no damage is done, but the knockback is even greater. Additionally, the knockback that the Bumper delivers increases as the target's damage increases.
Bumpers return in Super Smash Bros. for Nintendo 3DS / Wii U, now with a new design: the outer part is silver instead of blue, and the central part is red with a yellow Super Smash Bros. symbol.
Bumpers also appear in Super Mario Maker as a free update (1.30) on 12/22/15. They resemble donuts with eyes, and they look like Lemmy Koopa's ball. They are unlocked by shaking a Grinder and also have the same size.
Super Smash Bros. Brawl
Super Smash Bros. for Nintendo 3DS / Wii U Trophy