Simplify the following text for a Grade 5 native English-speaking person.
Original: Some stages offer Yoshi the ability to morph into vehicles for a short time . DS , like the original Yoshi 's Island , differs from many platforming games in that Yoshi does not have a life bar ; when Yoshi is hit , the baby he is carrying falls off his back and Yoshi must retrieve him\/her before a timer runs out .
Simplified: The player moves Yoshi through many stages .