Here's an old project I did "for fun" to the real time record holder PJ. I feel bad for never finishing it, but this is how far it got.
This only does the beginning of level 2-1. I stopped working on it at the time because I accidently deleted my RAM Watch, and it made me go "meh". Unsure what I'll do with this, so I'm uploading it for anyone to take over if they want.