The numbers are hidden in the four images. They may be in one or all the images. All you have to do is find them and earn score. Have fun.
Source
http://www.123chase.com/superman_-_hidden_numbers/7546
Superman Returns – Hidden Numbers screenshots
Superman Returns – Hidden Numbers
| Rating: | [4 / 5 - 13 Votes] |
| Tags: | Hidden Objects , Puzzle , Superman |
| Publishers: | 123Chase |
| Language: | English |
| Play Mode: | Single Player |
| Library: | Flash Games |