4-20 From The Chaos Here you go, solution for 4-20. I just had to redo the level as I only started taking screenshots from level 5 onwards!
To the question about 6-4.... 6-4? The top two pieces are fairly easy. As for the centre lot, you need to have 3 pieces in one slot to make sure the doors don't shut when you remove the blocks from the switches. Start by opening all the doors, stick the cross piece in to a random side, get the other bit out....hmmmm, this is starting to get tough to explain! Here's a screenshot, anyway. I'm sure you'll firgure it out!
Twisted Island solution. Finally! This had eluded me for a while. Finally solved it. Still got Jack Be Quick, Quarks, Sherlock and whatever the last one is on level 6. Plus I have Rat 12, 16 and 17 available to me. Any help with those would be much appreciated! But here's the Twisted Island screenshot....
ok... stuck on level 6-10 infinite loop! assistance required! thanks~ *edit* ok nvm just beat it 5 minutes after my post lol...
Ripper - a belated thanks for that! I'd forgotten all about this game until I saw a bookmark I'd made to this site and read your response. Looks like I'll give the game another chance, thanks to your help.
The game is starting to get real slow for me now... Been stuck on 6-12 quarantine for a few days... Any help would be greatly appreciated!
I don't have pictures for 4-10 or 4-16, but the solution to 4-19 is answered step-by-step just a couple of posts above yours.