I think you forgot the code!
D'oh! I'll just quote the whole thing again since new page yadda yadda
Mineshaft Mayhem is an attempt to make a vertical level in SMB3. I started to run out of blocks (in fact, the non-sub-world is at the maximum number of blocks!) so i had to start making each "area'" wider before thinning back out at the top. Kind of a reverse hourglass.
There are 3 hidden 1ups and (should be!) 100 coins, so if it were to come up in 100 Mario Challenge hopefully people can break even on it if they poke around.
I spent a lot of time on this one, so hopefully people enjoy it! I should have toned down the difficulty in certain sections but I'd already spent so long on everything that I didn't have the energy to re-engineer much.
D659-0000-0032-E01B