Plants vs Zombies iOS edition. Played on an iPhone.
"Kill a total of 10 Gargantuars using mallets in Last Stand Endless".
Sounds straightforward enough.
I choose "More Ways to Play" ---> "Puzzle" ---> "Last Stand" ---> "Last Stand Endless". And away I go, first purchasing an adequate supply of mallets in the shop.
When Gargantuars arrive on scene at level 15 or so I choose a mallet and tap a Gargantuar head. A little "Pow" appears. But the Gargantuar doesn't go down. It then takes awhile before I can choose another mallet.
Would someone kindly tell me how this is done?
Is a delay normal - does one have to wait for another mallet to appear after having used one?
Does a mallet strike have to be timed just right (after having taken damage by other means) so a Gargantuar goes down when hit?