For the ridiculously hard Achilles map: After wedging the princess over and over, and sometimes setting off the explosives without budging the steel bars I found the sweet spot that worked for me. Get the parachute bomb to swing over and hit at the bottom corner of the ledge the explosives are on (so it hits almost underneath the explosives). She will get wedged again, but wait for a few seconds and hopefully she goes SPLAT!
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