The major problem with this game is getting hooked by an object and getting spun upside down. When this happens, it ruins your whole run and is almost impossible to recover from. This wouldn't be so bad if it didn't happen every second run...
i was expecting more from the last level ... i maxed out everything at wave 20 so there wasn't much to do after that ... good game even though i couldn't get it. At first i said stuff it and left but i came back. 4/5