Yoshi's Island (SSB)
Yoshi's Island (ヨッシーアイランド Yosshīairando) is a stage in Super Smash Bros. and is Yoshi's home stage. It is also a playable stage (as Past Stages: Yoshi's Island) in Super Smash Bros. Melee, unlocked by hitting Sandbag 1,323 ft (400m) in the Home Run Contest.
This stage comes from Yoshi's Story. In Yoshi's Story there are clouds that can be used as platforms. Some clouds have to be activated by a switch that runs on a timer. When the time runs out the clouds disappear. In this stage there are cloud platforms on each side of this stage, but they look different from the cloud platforms in Yoshi's Story. When a player stands on a cloud for too long the cloud disappears. This may be a reference to the clouds that disappear when the time runs out. In Yoshi's Story there are hint boxes that give out hints when hit. The hint boxes can be seen in the background of this stage. The opening of Yoshi's Story states that Yoshi's Island has been turned into a story book and that the Super Happy Tree is gone because of Baby Bowser. The main bottom platform of this stage resembles a book so this could be a reference to how Yoshi's Island has been turned into a story book. Towards the ending of Yoshi's Story, Yoshi confronts Baby Bowser. In the same room is the Super Happy Tree. The Super Happy Tree looks very similar to the one that is in the background of this stage. In the ending of Yoshi's Story, there is also a Super Happy Heart that is growing on the tree. But the design of the heart has more resemblance to the heart that is shown when completing a level in Yoshi's Story. The clouds and sun seen in Yoshi's Story also looks similar to the one in this stage. In Yoshi's Island there are enemy birds called "Goonies". Goonies also appear in Yoshi's Story. In this stage a Goonie can be seen flying across this stage and its design resembles the design used in Yoshi's Story. Also from Yoshi's Story are "Fly Guys" which are flying Shy Guys. Fly Guys can also be seen flying across this stage. 
The music used in this stage is a mix between level one of Yoshi's Story and Yoshi's Story's title screen. 
 Yoshi's Island
The stage has a paper and cardboard sort of look. The main platform is on a book. There are three platforms that hover above it. The bottom two are sloping inward a little bit while the top one is flat. On the left side of the stage, there is one cloud, while on the right side, there are two clouds (one near the stage while the other on the other side). The clouds will disappear after standing on them for about four seconds, but will reappear seven seconds later. This can be avoided by repeatedly jumping on the clouds without letting them disappear.
Strangely enough, during a round in Super Smash Bros.' 1P Game, the clouds on the sides of the stage are absent. A GameShark code can be entered to enable this stage without the clouds on the sides of the baseline platform.
 Tournament legality
In both Smash 64 and Melee, Yoshi's Island is banned, primarily because the clouds can promote camping; additionally, some characters such as Link in Smash 64 and Falco in Melee are unable to recover if they are lured onto some of the clouds.