×The only solution I can see is to activate the pressure plate before the "baby" steps on it. As of this writing, I don't see how that is possible. Or, is there some significance to the fact that the baby & the guard are standing on grass? If there is, it eludes me.

×...never activated.

×transform gel into mud and cut the first 2x2 blob

×transform mud in gel, and then gel into tar; after that there are several combination of cutting

×but I tried almost all of them but still can't drop the trapdoor and trasform into gel in time

×I also thought that I should cut onlt the tar-mud-gel I need and not all of it but still I loose some efficiency somewhere but I can't see where.

×You don't need to cut the side blobs at all.