OK, kudos to the Poptropica Creators for making a really challenging adventure. There have been a couple of spots that have been pretty tricky to solve. And here’s a big admission: I’m stuck. I’ve got quite a bit of the walkthrough completed but I can’t figure out how to get past the alarm system in the greenhouse. When you leave the maintenance closet after setting off the alarm, there’s this water cannon that prevents you from leaving. I can’t get past it and I can’t figure out how to get the key from the robot in the closet without setting off the alarm.
Have you figured this part out yet? If so, post a comment with the solution here and you will get my everlasting thanks and some big-time credit when the walkthrough is complete.
Update: See, this is what I love about the PoptropicaSecrets.com community. You guys rock. I got a response in less than five minutes. Thanks, DR3!!!
The answer, as DR3 points out in the comments below, is to jump up to the glass dome above the closet. There are some (pretty hard to see) cracks in the dome. Use the rubber mallet on those to break out of there. OK, now back to uploading the videos!