Melon Guy

Melon Guys are varients of Shy Guys which appear in Super Mario World 2: Yoshi's Island and its remake, Yoshi's Island: Super Mario Advance 3.

Profile
Melon Guys are taller than a regular Shy Guy, appearing stretched out. Their faces (or at least their masks) are stretched as well. Their arms and feet appear to be around the same size as a regular Shy Guy. They have some hair poking out from the top of their suit/costume.

Yoshi's Island
Melon Guys appear in a mere two levels in both the original and the remake. They cannot be defeated by being jumped on. In fact, when jumped on they flatten temporarily and shoot a seed. These seeds can hit other enemies and damage/defeat them.

Trivia

 * Due to their appearance they have also been refered to as 'Stretch Guys' or 'Stretches'
 * They are one of the rarest enemies in the game