It's Yoshi for the Famicom! In Japan, they apparently spell Yoshi as Yossy, and this game is pretty clear on that as you can see Yoshi popping out of an egg on the cover of the game. It's still a wholly average puzzler underneath, but it's Yossy on the Famicom!
NOTE: All photos depict good condition items only; actual product may vary.
Used Yossy no Tamago (poor box, poor instructions)