Wow, thanks man, for such elaborate comments and a cheerful one!
Yes, I will continue to add more levels and more ideas, your ideas are creative and I might consider them, especially the exploding barrel.
I avoid having things that can kill the player because I wanted you to feel the SPEEED of the game and you can set your difficulty for yourself by how many stars you want. So things like jumping over a huge lava gap might just be jumping over a large gap. Many people suggest adding things that would kill the player, and I'm curious to know your thoughts on my idea.
Anyway thanks for playing and such kind words, it really makes my day!