Click 'See inside' to take assets. Put wanted assets into your backpack so you can transfer them between projects. Find your backpack at the bottom of your screen, labeled 'Backpack'.
These assets have been taken from most, if not all our games because we either don't need them, or because we're adding assets to other games. Use these assets to make games, or to add to your project. You could even bring back old/prototype features from our games.