Collect the Heart Frame closest to the entrance to obtain to egg shots. Walk down and around to the Snakey, shoot it once, and push the egg to the left of the lower Medusa.
Collect the four Heart Frames around the tree. You will obtain the Bridge power-up. Face left and place the bridge across the river.
Walk across and push the closest Emerald Frame across the bridge. Move it up and to the left of the top Medusa. Then walk back across the bridge and collect the two Heart Frames to the left of the river.
Move the highest Emerald Frame over to the left two spaces, and then down and across the bridge. Manuever it until it is situated just below the treasure chest.
Walk back across and push the final remaining Emerald Frame over the bridge, and deposit it just above the final Heart Frame. Collect the frame, and then run up to collect the key before the Skulls get across the bridge.
Run to the Heart Frame below the water before the Alma reaches you. It will give you two egg shots. Use one on the Alma, and push the egg between the two boulders and into the water. Hop on top and take a ride.
As soon as you can, head up and collect the Heart Frame above the Snakey, and then jump back on top of the egg. Ride it around until you can get off to the left, above the Skull.
Collect the three remaining Heart Frames. When you grab the last one, the Skulls will wake up. Start running down to the key, and shoot the Skull that approaches you to turn it into an egg. Then push it out of the way while you run to the key.
The only concern here is to make sure that neither Leeper boxes you in. You can collect the Heart Frames in any order that you like, but put the Leepers to sleep first. The best places to stand and put the Leepers to sleep, is in either of the 2x2 empty spaces on the bottom or the right, and in the upper left by the chest. The two Heart Frames closest to the entrance will give you two egg shots each. However, you can only egg a Leeper when it's awake, not when it's asleep. Don't move the Emerald Frames from their positions as they won't help you too much and may potentially get you stuck.
Push the Emerald Frame on your left to the left above the right Skull. Push the frame on your right over to the right wall. Then stand above it and push it down into the lower right corner of the room. Come back up, and push the frame to the right of the right skull over to the left, giving you access to the treasure chest.
Collect the Heart Frame along the bottom wall, and then come up to collect the frame below the left Skull. While you're there, push the neighboring Emerald Frame to the right below the right skull.
Come back down, collect the Heart Frame between the two Emerald Frames, and then work your way around the outer edge of the room to collect the last two Heart Frames along the top wall. Push the Emerald Frame below you down so that you can access the path to the key. You should get there in plenty of time before the left Skull even finds a way to reach you.
Round up every Heart Frame except for the one directly above the lower right Gol (just to the left of where you entered.)
Push the Emerald Frame down to the level of the remaining Heart Frame, then push it to the right. When you can, push it down one space, and then place it between the last Heart Frame and the Gol below it.
Now collect the Heart Frame, and walk straight to the key.
