Cup Puzzle 3D comes from bugra bayrak. The object is to stack all the cups.
1. The Red Cup is Your Man. As Your Man travels from space to space, he flips.
2. The arrow: slides Your Man 1 space without flipping.
3. The yellow circles: flip Your Man
4. Multiple Red Cups: travel in the same direction. Be careful, one may travel while the other pushes a blue cup over the edge.
There's no information about how many levels exist. I've done about 30. Not too hard.