First of all, there are noticeable improvements, and they look good. Picking up the cards in 5-1 to avoid the pit was nice, and 6-2's use of regrabbing the block to get the card above the goal was great. (These may have been in the first version, but I don't remember seeing them at the time)
Although I voted yes on your first submission, I'm not sure what to vote here. The reason is that either you discovered a fantastic new glitch (and didn't use it enough), or you didn't notice it and still used it a bit.
Continually jumping as soon as you land will keep your extra speed after jumping from a downhill run. In some places, it looked like you used it knowing this glitch existed (2-1, for example), but in others, it wasn't used as much as it could be, so I'm not sure if you were aware of it or not.
Here is an example of the first three levels using this glitch more (although the first level is exactly the same). 90 frames faster at the end of 1-4, but probably still improvable.
Other levels that may benefit from this:
- 2-4
- 2-5 (maybe, by veering left to hit a slope early on)
- 4-3 (tiny downhill at the beginning)
- 5-1 possibly, although that level is already done pretty fast
I hope you make a third version with this glitch fully exploited and gain even more time off the old published run. It doesn't seem like too long of a game to run, so it shouldn't be too bad. I will vote yes to that, but I voting meh to this one. I'm not voting no because if you aren't going to do a third version right away, then this should still be published, as it's not bad and it certainly trumps the existing run by a wide margin.
Other notes:
One possible improvement I noticed is during the times when you have to change direction for whatever reason. It takes a long time to slow down. For the times where you have a wall that could stop you, it may be faster to instead run into the wall to get an instant stop of velocity, and then head in the opposite direction. I didn't test this though.
And in 4-4 you walk right over a card at the end and don't grab it. Wouldn't it be faster to get this card instead of the other card in the same level?