Survival: Pool (TF2) has 20 waves. It is a pool level with some hardness. This has most of the Survival: Endless zombies, and the 9 Team Fortress 2 Classes.
This was posted here because I can't post it on the PVZCC wiki.
Returning and New
Zombies from Level 1-1 - 4-1
Scout - 20 HP
Damage: Low (Attack rate is 70%)
Soldier: 50 HP
Damage: Medium (attack rate: 50% and explosions)
Pyro: - 30 HP
Damage: Very Low (attack rate: 95%)
Demoman: - 100 HP (spawns alone every 5 waves)
Damage: High (Attack rate: 10% and explosions)
Heavy: 90 HP
Damage: Very Low (attack rate 100%)
Speed: Very Slow
Engineer and medic are banned because Medic can heal and Engineer can build non-stop firing sentries, which will wipe the heck outta you.
Sniper - 10 HP (defense: 90% from all sources except insta-kill plants and Snap Dragon, Laser Bean, and Bloomerang)
Spy: - 20 HP
Damage: Very High (only from behind, attack rate 10%)
(where is the 2nd section..)
Game in: PvZ2
Plants returning from PvZ1:
Gold Magnet (you get tons of coins from demoman)