Pictochat 2 - The background is too close to the stage.New Donk City Hall - The victim would go behind the New Donk City Hall itself (and possibly shatter a window).Moray Towers - The stage platforms could block the victims from view.Dracula's Castle - The victim would fall behind the background castle wall.Balloon Fight - Only in Super Smash Bros.Boxing Ring - The Jumbotron may obscure the victims.Gerudo Valley - Only in Super Smash Bros.Flat Zone X - Only in Super Smash Bros.Umbra Clock Tower - The Angels may obstruct the victims.(This also explains why summons that go into the background cannot come in.) This does not occur in Super Smash Bros.
WarioWare, Incorporated - Elevator doors.Green Hill Zone - Star KO's can happen in Super Smash Bros.Super Mario Maker - Star KO's can happen in the 3DS version of Super Smash Bros.Delfino Plaza - Only in the normal form.Battleship Halberd - Star KO's can happen in Super Smash Bros.The Great Cave Offensive - Victims may be obscured.Pac-Land - It is not known why Star KO's cannot happen, since the background is more open.Duck Hunt - Only in the Wii U version of Super Smash Bros.Mario Circuit - Background may be obscured sometimes.Jungle Hijinxs - Only in the normal form.The reason for banning Star KO's may be due to the background. Wrecking Crew - Only in the normal form.Skyloft - Early versions featured Star KO's.Mushroomy Kingdom - Only in the normal form.The reason for banning them in the normal version from Super Smash Bros. Ultimate's versions's Omega and Battlefield forms. Luigi's Mansion - Star KO's can happen in Super Smash Bros.Star KO availability can be tested with the Boss Galaga item in Super Smash Bros. In addition, they become much smaller as they're falling right before disappearing as a star. Characters will do their tumbling animation facing the screen, although some, like Little Mac, appear to still tumble facing left. The animation for the Star KO has become slightly different in Super Smash Bros. for Nintendo 3DS/Wii U, but getting them is somewhat harder as sometimes characters explode instead, and they will not occur when the time limit is almost reached, due to their lengthy animation. According to Sakurai, Star KOs return in Super Smash Bros. As mentioned above, sometimes a Screen KO will happen instead. Brawl, Kirby uses his up smash to knock Mario and Link off the top of the screen, but the usual colored explosion occurs, instead of a Star KO. Also, in the beginning of the second trailer for Super Smash Bros. In Melee, members of a computer team (such as the Fighting Wire Frames) don't experience Star KOs, instead undergoing the usual colorful explosion (However, in Event Match 37, they can get Star KO'd). In Super Smash Bros., members of a team (such as the Fighting Polygon Team) do get Star KO'd. Zelda in Smash Ultimate in the Star KO process while under the clutches of a Boss Galaga. 1.1 Stages where Star KO's cannot occur.