This trainer has been made for Serious Sam HD: Second Encounter v1.126138

I have made this trainer on request, but it is kinda useless because there are built-in cheats for this game:
Open the console with ~. Type in:
cht_bEnableCheats=1
cht_bEnableCheats=2

Now press ESC in the game and as You can see, the cheat menu can be accessed with F3 key.
It has everything that You may need. God mode, fly, ammo, turbo mode, ghost mode, etc.

Trainer download link:
Serious Sam HD: Second Encounter +1 trainer

First run the trainer.
Then run the game. (You can start the game with it's own icon or You can use the Start game button in the trainer.)
Hit number keys on the numerical keyboard to turn options on/off. Make sure that NumLock is active.
You can also use the checkboxes to enable/disable the options.

There is 1 option in this trainer:

1. Unlimited Health

NOTES:

Unlimited Health: You will have 9999 health.

You can send Your comments and bugreports to Ezt a címet a spamrobotok ellen védjük. Engedélyezze a Javascript használatát, hogy megtekinthesse.

Some information about virus reports for trainers generally. Read it before You post something about some virus.
http://szemelyesintegracio.hu/cheats/41-game-hacking-articles/212-trainers-and-anti-vir-softwares