i got to round 35 then quit and for the people who cannot get past round 7 because of the bigger enemy unitsgo ahead of your teamates through the first five rounds so you can get a lot of coins and get the more damage upgrade as soon as you can and then save up for the no power bar and then you can get he rest of the upgrades from least amount of coins needed to the most amount of cons needed trust me that's what i do and it helps me a lot and don't get discouraged if they immediatley get you at round 7 because sometimes the game puts too amny units plus all he bigger units although i rate this game 10/10 or 5/5 wichever you prefer
Its a good game but after you get all of the upgrades it is to easy to kill everyone so make the game harder and make the enemies have different kinds of units.Plus i got to level 35 with no problem except when i did not have all the perks and the only reason i did not get past level 35 is because i quit it got to easy.
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 "Star Stalker"){kind=icon}
 "Last Egg Alive"){kind=icon}
 "Epic Coaster"){kind=icon}