Chimera - Braid -

Certain objects are immune to rewinding (glowing green).

There are 8 hidden stars throughout the game. Finding them requires extreme patience (e.g., waiting 2 hours for a cloud in World 2-2) and mastery of "glitch-like" jumps. Collecting all stars changes the final level's ending. Chimera - Braid

If it glows green, your rewind won't move it. Use this to reposition yourself while the object stays put. Certain objects are immune to rewinding (glowing green)