ha ha ha...ha ha HA..HA HA HA BWAH HAH HAH HAH HAH HAH!! HAH HAH HAH----
--sorry. Failed my sanity check there for a sec.
Edited to add: I want to put in my props to
Cheapass Games (mentioned earlier). I imagine that kids would have a good time with "Devil Bunny Needs a Ham" -- no, wait, with that title, it won't do. How about "Save Dr. Lucky"? It's a twist on a twist of "Clue" -- the original game was "Kill Dr. Lucky", in which instead of trying to find out who killed Dr. Lucky with the candlestick in the library, you're actually trying to kill Dr. Lucky with the candlestick in the library (probably also not a good choice). But anyway, "Save Dr. Lucky" is a game in which you're playing characters on the Titanic and you're trying to save the namesake. After a few turns, levels of the board disappear (they "sink"). It's fun. They have a variety of inexpensive and very silly games that would probably appeal to kids and do not involve elements that will swallow your soul.
Edited again to add: Zombiex, I like what you've done with the idea that defeating a monster doesn't kill it, but makes it your pet. That's pretty cool. Kind of a "pokemon" angle.