They are very rare, and are usually only found at the start of a new level. They are also present before some boss fights and sometimes before a new segment in the level starts.
They permantly save where the player is unlike checkpoints where if you turn your system off it will not save your progress in the level.
|! | ? | Aku Aku | Ammo | Arrow | Basic | Bounce | Checkpoint | Copter | Crash | Detonator | Infinity | Invisibility | Iron Arrow | Iron Check Point | Iron | Locked | Magic Carpet | Nitro | Nitro Switch | Outline | Pants | Slot | Spike | Time | TNT | World|