Good game in itself. Indeed it would be better to just say that you connecting to the totems would stop the blue goo from coming, since two blasters are enough to stop it once at the source. And although it is a nice game, I don't think it is good enough to pay for.
Save and undo functions would both take a lot out of the game. It is much more about thinking than luck. You can beat it many times in a row. I've just made it to level 73 and some guy even reached 166. No luck or cheating involved.
I've already reached level 30 a few times (hint: don't be afraid to use jokers to reach quadruples harmonies), but this game remains addicting. So simple, but so challenging.
Would be nice if the heavy infantry woul not all target the same little bug. Love the game though. And the 'report a bug' in the game tab is hilarious.
After 10 waves, I have enough money to build the maze I want. After wave 30, I start doing something else and 15 minutes later, I'm almost victorious without doing anything in meantime: too slow, too easy.
capgreyfox is completely right. After you finished it using a save button , you probably wouldn't play it a second or a third time. Now it's a challenge.
Nice game. Multitasking rules. Only gets boring when yourmen are fully upgraded and you have like a thousand coins, but still have to wait until you can beat them
Also I once had to guess "settee" and the game gave away the letters s,t and e. So I had to guess wrong in order to get a new word, since it didn't refresh automatically.