I'm still getting stuck in the playfield a lot, sometimes my feet, but more often my nose. This makes a lot of the platform jumping much harder than it should be, particularly since you cannot jump if your nose is stuck in the wall. (see pics) Getting past the thing in the wall that shoots at you is unnecessarily difficult.
Jumping is much improved since the switch to the button, but some jumps are still virtually impossible (escaping the lower pit after getting the herb on the collapsing bridge, this I cannot do).
The collapsing bridge in the dark room is a little cheap. Unless you know it's there, that's pretty much instant death, sometimes several. Even when you know it's there it's not always easy to make that jump.
I cannot get past the hand of god dropping blocks. One hit from the block is instant death and the speed of the drops is incredibly fast. If you have to use those blocks to climb up, I'm not sure how to get past this room. Clearly someone earlier in the thread was able to beat the game, but I don't see how they got past this screen.
I am also getting a weird image on the title screen (I'm using Stella), that makes the words almost unreadable. Have you been able to test this on actual hardware? Is this just an emulation issue? (see pic)