below is an actual demo of the "Free Rotation" + "Shrink" features that were used for designing a basic level:
- you can notice the original barrel (it's the biggest, 1:1 size), plus 4 shrunk clones (available ratios: 1/2, 1/3, 1/4, 1/5)
- you can also notice the metal pieces that are shrunk and/or rotated (original piece is vertical only)
As you can see Lemmings' collisions work well with shrunk+rotated pieces.
ps: this level was loaded into the game thanks to the "Load Custom Level" option that will freely allow you to create, load and share your own levels (+ eventually also load your own custom tilesets if you want). For designing your own levels, it's easy: just use any Lemmini-compliant level-editor!
edit:
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I've updated jLevelBuilder to handle the "Free Rotate" + "Shrink" features when using math formulas: this is very nice to create never-seen-before Lemmings levels. The following "Rock" level example was created by using only one kind of Terrain!!! (because of rotated tiles, this level is impossible to design in the original Lemmings game, but it's fully supported in the Android game)