Crash Bandicoot (video game)
You can also collect gems in Crash Bandicoot. To collect a gem, you must break all the boxes on that level without losing a life. There are several different colored gems in the game. Some levels require that you complete another level before every box on a certain level is revealed. For example, the Jungle Rollers level requires that you collect the green gem from the Lost City level before every box on that level is unmasked.