I turned overlordofalldot's strategy into an easy way to get the Booby Traps badge: First, build a wall with palms, leaving one (double) square open. Have one row be one (crate) square lower than the other, and build two triggers in the gap so the pirates can go left (or right) on these triggers but not the other way. Build a log roll above these triggers, and three bee hives below. Link them all up. Send the first wave(s) and convert the top two beehives to tar pits. This enables you to effectively trap enemies and get a lot of points/money. As soon as you can build a second beehive/pits/log hall walled off with palms (leave an exit next to the triggers) above the first one, just call all waves. You'll have plenty of money to build a third in time if needed. It's important NOT to upgrade your beehive to coals or use any towers, they'll reduce your end score by quite a bit. Only in the end I built these to mop up, but by then I had 230k points.
 "Race Time"){kind=icon}
 "Zombie Minesweeper"){kind=icon}
 "Lucky Tower"){kind=icon}
 "Pirate Defense"){kind=icon}
 "Nuclear Outrun"){kind=icon}
 "BoomsticK"){kind=icon}