There are a couple of achievements that seem impossible to complete:-
When you acquire the 27th Office Craft; it clearly displays that there are no more crafts to be gained so getting 30 is not possible.
Likewise, the last contact at stage 9800 is the 40th one so not possible to get another five.
Unless there is a special "cheat" mode to access more craft and contacts, the goals shown above are impossible to achieve.