Aight, I just played this hack for some time, and I got some thoughts I want to share here. Right of the bat gonna mention that this aint a full review of sorts but rather my first impressions of the hack until after the first boss.
Firstly, you are using that 100 Coins = Star thing again and while it works a lot better here then when you forced it into your hack before this, I still am not really a big fan of it. I really
like how you went about handling switch palaces in this hack though, little houses isolated from the rest of the map that have little minigames for you to complete. It's incredibly fun!
Two more issues I noticed:
I really like the big chain chomp, it looks really good! But the collision is off and made me fall through him as shown here.
I managed to let these two piranha plants spawn in such a way that I couldn't possibly without taking a hit, or in this case lose a life.
All in all a huge upgrade from your last hack. I enjoyed it a lot
even with the few issues I have pointed out here. Definetly gonna play the rest of the demo when I have the time and motivation to do so and I'm looking forward to the finished result!