GUYS I NEED YOU'RE HELP! I've tried dozens of combinations and my max combo is 1,054,263! What seems to work best for you guys? And bleh! It's pretty fun but waiting for combos SUCKS.
It doesn't sound like you need much help, but I'll usually put five buzzsaws, equally spaced as low as they can go across the room. I'll then put launchers in between the saws. Add pretty much whatever you want, but my second priority is to increase the flow of turtles. JUst what I found.
Just make a bowl shape with the saws, then put many lasers on the walls. The explosion will get many shells into the bowl but they can't come out so they'll just keep bumping around and get scorched by lasers and never come down. If you want you can keep on waiting until you are 50 years old then manually stop and submit.
I agree with the bowl of band-saws idea. I always leave a gap on the left hand side of the bowl so shells can freely enter, when the sentinel fires the shells get trapped against the right side and can't fall out. Then spam turrets across the top because each hit from them counts as a bounce and lay a carpet of launchers on the ground so escaped ones will bounce back into the saws.
From thereon just upgrade the levels of each pipe equally until you get a constant stream of turtles to kill. Once you've hit a load don't sit there watching the score counter lazily go up, go and do something else and let the game accumulate points in the background.
dude i just waited to get money then bought the buzz sawz put 5 in the middle and turrets all over the top but the trompoline thing allover the ground this may cost a little butit takes time:P and forget to openthe turtle valves because it makes them come out faster.
haha, i just put a line of buzz saws lowest they can, and then lazers, and launchers alll across the bottom, and a few buzzsaws on the top, i did that about thirty minutes ago, im goin for the high score, im at... *checks* about 26,000,000. i know, i have a long way to go, but, its going very fast, and im stayin on all night. sooo, i think i'll do it.
here's a picture of my setup, i started the big combo about 40 minutes ago, so dont look at the 100 minutes on the timer, it took a long time to set it up, anyways, here you go!