THE GOOD:
You get to use Yoshi instead of Mario.
Mario is a baby (in this game at least).
Bowser is also a baby (in this game at least).
Bosses look good.

THE BAD:
Some of the bosses look too easy.
It's a shame the other Mario SNES games (besides Super Mario RPG) lose the zing this game and probably SMRPG has.

SUMMARY:
Lastability: 6/10.
A little too short, but some bosses' difficulty makes up for it.
Graphics: 6/10.
Cartoony, but you'd expect that.
Sound: 6/10.
Weird how Yoshi's double jump sounds or the egg or something like that.
Gameplay: 8/10.
Bit repetitive, but so are all SNES games. You suck some guy up then they become an egg which you throw at yellow stuff or even at enemies.
Overall: 4.5/5.0.
Great SNES game. Buy a $20 SNES and a $2 game like this and then you'll have a ball.