Woah, thank you for such detailed review! Addressing the complaints:
1. Dropping an item on contact with the wall was the easiest solution to prevent it from being able to glitch it trough wall so I don't think it will be reworked
2. This is easily fixable, I can add a button that manipulates time speeding it up or just add a button that makes character run faster
3. Making the block launch more stable is possible in theory, but I need to test it on practice. Possible feature of the next update ;)
I'm also really bad at making music and even worse at working with musicians so I mighy add at max 1 more theme
I'll change the plant level a little to make it little easier to understand
Again, thank you so much for such a great review, this not only helps but also motivates to do more and better :D