I have levels 1, 6, and 7 completed. You can check the RUC by clicking on the
old link, or that one right there.
175 frames ahead of Mazzic's v2, which ends at the same place I am at currently. I also skipped the Ice Palace by not having a life potion in Samson's posession, which saves about 80 seconds. The Ice Palace was not a fun level to watch anyway, with all the jumping, and the annoying boss that is slower than the rest, so I'm glad it can be skipped.
I took a life increaser in the first level, which cost me 19 frames. This allowed for a different strategy in level 6 by taking more hits (and switching characters less), and a faster boss strategy. 114 frames gained on that level. I tried manipulating a life increase drop in the Mouse's level, but was not successful, and the one that is already there is not worth the detour. If one could be manipulated without much time spent, the boss of the first level could be defeated without switching characters and could save 20-30 frames, plus the 19 used to get the life increaser in the first level.
Feel free to comment. Seven levels to go.