AT LAST!!! i have beaten all 228 waves on the gem of eternity level and OMG do the giant waves have some massive HP totals ... wave 223 2 giant monsters 7,252,007,416HP ... wave 227 5 giant monsters 3,917,358,102HP wave 228 10 runners 1,0200,000,000HP (about) ... i took flipping forever to do and a fair few very very very high grade gems like grade 20 ... i think i had 6 of them by the end and many grade 19's .. so yes it CAN BE DONE ... now time to relax a bit xD
as i have noticed many of you are talking about anyone fully beating the last level ... i am getting there and i will hopefully complete it soon, i use a combination of duals and prismatics in traps along the path ... i can usually get to wave 140 with about 6 gems all grade 12+ and usually with a grade 15 prismatic causing stupid amounts of damage ... once you get to wave 135 ever monster has ver 1 million HP even the swarmers, so by wave 228 they will have hundreds if not thousands of millions of HP ... too all people here wishing to beat it fully like me good luck, you will need it xD
To unlock Beyond Corruption (the bottom notch) you must have the gem of eternity ... and beyond corruption gets harder every time you win ... so even level 1 gets stupidly hard when you have 48 waves to deal with xD