to grind money, pick up WereTigers, Phantom Ghosts, Mad bull, Valkyrie, Untamed Animal and Goblins + a fully upgraded shield. Then grind the Big Bang epic (120Kg in 2 mins)
it would be nice to let your lemmings know if someone else has jumped into the water before you. That way I lost several lemmings diving into the same spot, thus losing an "aqua rune"
best strategy I have has got 4 steps. 1) Get the starting area covered by have 7 cannons surrounding the next (4 in a row horizontally and 4 in a row vertically, while 1 is in both rows) 2) Upgrade them to sniper cannon II. 3) Upgrade them to sniper cannon III. 4) get 2 more upgraded frost cannons on both sides. This way I got to lvl 112 ;)
1012, yes :P You just need to find a guy with at least 2 similar characteristics. 3 would be even better. I got it on my 6th try (4th try was 950 and 5th try was 964)