This game is easy and fun:
Games played by others:
| Mission | Clicks | Avg. hardness** |
|
| Napster >> Hubble Space Telescope | avg. 10.3, record 5 | 3.3 | Play! |
| William Harvey >> Tropical cyclone | avg. 6, record 6 | 2 | Play! |
| Japanese yen >> Berlin Wall | avg. 5.5, record 2 | 3 | Play! |
| San Diego Electric Railway >> The Blitz | avg. 4.3, record 3 | 1.5 | Play! |
| Francis Crick >> South China Sea | avg. 4, record 4 | - | Play! |