There are some really cool ideas here. I especially liked the cartridge animation, and the whole concept of gathering gold to build up the island is genuinely interesting.
That said, I had a hard time understanding what I was supposed to do for quite a while. The description mentions mines, but I couldn't find them, and I only realised I had to use the boat because I had seen it in the screenshots. I also discovered the gun pretty late, which made some enemies feel impossible to deal with at first.
Mining could also use a bit more feedback. It took me a while to realise that spamming the button doesn't help and that you need to wait for the animation to finish between hits. After spending 40 coins I also built something, but I couldn't really tell what it did.
The sound became a bit repetitive after a while too.
In the end, though, I did have fun with it. The core idea is good, but I think it still needs quite a bit of polishing and clearer feedback to make everything easier to understand.




