I was playing Plants vs Zombies Free Survival Endless on my Android Tablet and for some Reason, You can Kill Giga-Gargantuar in the Free Version on Survival Endless (Have not tried out Last Stand Endless yet and Yes, I did killed it with Cherry Bombs, Squashs, Doom-Shrooms and Mallet)
I thought Giga-Gargantuar has Infinite Health in Free Version.
Does Giga-Gargantuar only Killable in Survival Endless from the Free Version?
Yes they are killable with 300 health (Each peashooter does 1 damage), so they are very tough. I used a swarm of 5 wintermelons a row and some gloomshrooms and cob cannons to kill them on flag 79. They come in huge swarms in 5 or 6 so be careful.