thank you, as i said i played all the levels of your games (except the bonus ones) and i think all the levels should be redones for somes reasons:

All the levels where extremely easy,most of the time i just had to wait until it's done, it become even more easy once you understand you should put your tower in loops. In comparison, the boss was really hard, i couldnt even beat it though i tried a lot of times

All the levels where incredibly long, which doesnt help with the fact that it's boring, i think you should makes the levels way shorter in time and in more hard to compensate (so it's okay to die often because the levels are shorts)

As i said the boss was so hard i couldnt beat it, though i think it was the most fun level to play as you have to move and upgrade your tower as it moves through the level, i think you should really do more bosses and less normal ennemies because you could add more variety to the gameplay (like boss that could stop, or follow a random path).

I think the idea of "the ennemys doesnt give points this level" is the worst you ever had, you just place some towers at the start of the level and just wait for the rest of the level (wait for a very long time because as i said levels were very long)