Well here's my way of thinking. There should be dungeons with a monsters a little stronger than bomies and weaker than smokies. Why? Because in any game you gradually go to stronger monsters. You don't fight weak monsters you can kill at level 1 for 100 hours until you reach Level 5 to stand a chance against harder monsters. You gradually work your way up.
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Y'know sometimes even my lucky rocketship underpants don't even help.