Sure c:
(spoilers for the secret puzzles)
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1. Try to trap Red between the two clock hands, so he falls. You have to wait until he is retracing his steps. And you have to be quick!
2. Try to fling Red into the open palm of one of the giant hands. The timing is tricky, would not recommend this one.
3. During the segment where you clear icebergs for Red's ship, try to lower your elevation so you can shoot him. (This route is the hardest...)
4. (Easiest solution) Try to use the propeller of a lower helicopter to cut the ropes carrying Red. This one is fun.
Just a warning - the second half of the game is VERY DIFFICULT, even if you use 8 to reset levels. I wouldn't worry too much about seeing every ending - just have fun seeing how it all plays out.