Parents who are looking for an online game that's safe for their kids to play should check-out Super Hero Squad Online. Yes, there are tons of actions in Super Hero Squad Online but the actions in the game are portrayed in a cartoon-like way.
It's like watching Tom and Jerry or any other cartoon shows where the actions are portrayed in a non-violent way.
In any case, Super Hero Squad Online recently released a code that will give anyone who plays the game a free sidekick. The code is MOONBAT and, to redeem this code, just go to HeroUp.com, login, type the code in the Redeem A Game Code Box and click on the Redeem button.
If you're a Super Hero Squad Online player and you redeemed this code then you'll find your free sidekick the next time you play the game.
For those who are not yet playing Super Hero Squad Online, you can play it for free at http://www.heroup.com. Just create an account and start playing by clicking on the Play Now button.