Yoshi and shell colours
A quick reference to riding Yoshi and the effects of coloured shells in Super Mario World.
Original SNES game and its emulated releases. Controls use SNES button labels. Super Mario Advance 2 differences are outside this guide.
Ride, eat and dismount
Press Y for Yoshi’s tongue and B to jump. A dismounts.
Read the shell colour
A red shell becomes fireballs when spat out. A blue shell lets Yoshi fly, while a yellow shell creates a damaging cloud when he lands.
Try one effect at a time
Our recommendation is to learn a shell effect on familiar ground before incorporating it into a difficult route. Notice the difference between the shell you are holding and the jump or landing you are trying to make.
Watch the shell while planning the crossing
A blue shell gives flight, a red shell produces fire when spat out, and a yellow shell grants a ground-impact effect. Green shells do not supply those extra colour effects by themselves. Yoshi can swallow a held shell after a while, so begin a planned crossing promptly and recognise when the effect has ended. Coloured Yoshis extend the combinations; identify both the mount and shell before relying on one specific ability.
Losing the mount changes the next move
When Yoshi is hit, he can run away while Mario remains in the course. Recovering him safely is a different problem from chasing immediately into the same hazard. Pause, check the terrain and decide whether the original obstacle is still manageable without him. Some castles and Ghost Houses leave Yoshi outside, so a route through those stages must work with Mario’s own movement and current power-up.
This is a shell-colour primer, not a complete guide to the additional abilities of every Yoshi colour.
In the game: Yoshis and shells
Green YoshiThe Yoshi from Yoshi’s Island, met in Yoshi’s Island 2.
Red YoshiBreathes fire with any shell. Hatched in the Star World.
Blue YoshiFlies with any shell. Hatched in the Star World.
Yellow YoshiStomps with any shell. Hatched in the Star World.Koopa shells in Yoshi’s mouth
Green shellNo extra ability for a Green Yoshi; a Red, Blue or Yellow Yoshi uses its own colour’s ability with it.
Red shellSpit three fireballs.
Blue shellSprout wings and fly while the shell is held.
Yellow shellStomp the ground with a shockwave on landing.Pictures drawn from the Super Mario World (SNES) game data: sprites are assembled from their tiles the way the game draws them, in the palette of a level they appear in; blocks, coins and berries are built from their 16×16 level-tile definitions with the animated tiles in place; maps show the overworld’s terrain layer (the level tiles and paths on its other layer are not in the asset export). Animation timing is approximate. Red, Blue and Yellow Yoshis hatch from the eggs in the Star World, and only grow up after eating enough enemies.