I found a bug - on level "Wibble Flowerpot" if you immediately jump left and keep walking, you can walk straight through the first yellow dancing flower.
I'm really interested to hear more about how you put this together - check your Mastadon - I've been messaging you - although more than happy to message here instead. Really cracking port and I particularly like the endless lives, timer and configuration options. You've really added to the replay-ability of the game. Something I'm hoping to do with Chuckie Egg.