Retesting replays for all levels featuring teleporters is recommended after this update. Any levels that also require very specific timings with them may have broken as well, so be sure to check.

Would definitely vouch for Minish Cap and Superstar Saga; two games I've personally 100% finished multiple times and enjoyed greatly.
As for me... I don't really know if I'll complete a game when I start playing it. Usually I don't because there's parts that are just too annoying to bother with.

Add me to the list of people that cancel replays with a hotkey. I do that all the time, it's actually right next to my pause button. That way I don't step forward one frame by clicking the screen.
Sometimes I use next/previous skill buttons, but I find myself just clicking on the skill bar quite often too. I'm kinda indifferent about this one.
I like the success/failure jingles, at least enough to use custom ones in my pack. Then again, turning them off by default seems to be a fine idea if most people have it off anyway.
I always manually name my replays, so I'm indifferent in this regard as well.
As for a release rate hotkey, I don't use it now that I figured out you can max/min the release rate with a right click on the -/+. If the hotkey did that as well I think it would be better.
I'm fairly indifferent about the others that were mentioned.

Hi and welcome! Simon is correct, and there are many levels that are rather difficult to figure out, much more so than anything the original games had. Be ready for some brain busters.

I hope it does stay like this, because I've also made a level that requires it.

Indeed. Very pretty.
Sport pod isn't just going to hand you a builder and platformer, is it... No, of course not.

I've noticed the 'sketch' objects you can place in a level using the editor, but they can't be seen when the level is loaded. Perhaps there could be a way to press a key to make sketches appear as 'no effect' objects so the player can get a hint where to use a certain skill? Sometimes one skill placement is all you need to get past the mental block.

Ok, I have a title graphic, but... How do I make the transparency work properly? I've tried both options that it prompts me with when I insert it with Flexi, but they both still display the black blocky background on the title screen.