You'll travel around several islands in the Green Bay, collect and battle monsters from the Dragon Quest world, breed them to create more powerful monsters and attempt to win the Monster Scout Challenge. Yes, it sounds like Pokemon, but remember Dragon Quest has a long history of monster battling of its own. It's tough to say where DQ ideas end and Pokemon begins. To be honest, we don't really care because the game is every bit as addicting as smaller-scale monster battles in DQ VIII and now it's been expanded into a full-sized game.
You start with a weak monster and begin by fighting other monsters to power-up. Along with fighting, you can scout other monsters to entice them to join your team. The chances of successfully scouting depend on the attack power of your monster team. If your guys are strong enough, the prospective teammate will have a good chance of being super-impressed by your awesome fighting skills and join up. If you aren't strong enough the monster will probably just get pissed-off. It turns out that the hallway-blocking green dragon we were fighting didn't really want to team up with a dinky Mischievous Mole until we had leveled him up and transformed him into a Hammer Hood - he's much cooler than a mole.
Before long you'll have your own team of three monsters and three more that you can swap in if one of your guys needs to come out - for example, he could be dead. After exploring a few of the islands you'll collect enough monsters to start your own petting zoo, but most of your horde will have to wait in storage until you decide to do something with them. That's where the fun part of monster management comes in; to get the best monsters you'll need to find a positively charged monster and a negatively charged monster and put them together to "synthesize." Boom chicka bow-wow.
The Series creator, Yuji Horii, told us the game is going for an audience a bit older than most Pokemon players, so we figure it's ok that the game talks so openly about how synthesis works. Incidentally, the process also destroys your first two monsters, but their traits can be passed down to your new creation. Managing your creatures, powering them up, winning the big tournament and collecting 'em all takes a lot of time, but we like searching every corner of every island because we like being the best. That's us though. If you hate backtracking, looking for hidden things and having to spend some serious time building and rebuilding your elite fighting team of cute little critters, you may want to look elsewhere for fun.