note; mole1 is too slow, mole2 is good enough to save your money for other upgrade. don't bother the other achievements other than 26k ft and 25 big diamonds trophy. the strategy is to wonder long in 24k ft to mine those big diamonds(750 each) by using nitros in horizontal and let that fully upgraded mole do the job. for a benchmark, i had fully upgraded all upgrades in '8 weeks to go', and on the 25th week i had 210k+ in cash, plus that 2 trophies that i mentioned above, plus any ft trophies, resulting in 310k+ cash. good luck, see you in PANAMA :)
but it's not fancy if you can't save... *) I had unlocked the peach pant!.. sigh, no award. Reload.., run fast for 6 levels, not AGAIN!! Clear save data.. run fast for 6 levels, AT LAST!! goodbye, please for god sake, no more sequel if you can't even save..
I think the stadium level (water globe) and elephant level are harder than the cathedral level. The broadway level shouldn't be the last, it's easier than other level because it contain word.
Good game, more level would be nice tough