This is a really good game! Some suggestions for a full version (possibly) would be the following
First, I'd try to revise the already made things. Pretty much everything is fine except for the monster blocks and bombs. It doesn't take too long to find out what each block does, and I often avoid them just because they're usually not worth it. I guess there's a bit of gold to be gained, but it really is;t much at all since gold is plentiful elsewhere. I'd add one of two options. One, you have them drop a special ore available to only them, making it worthwhile to attack them. Two, make them harder and a sort of mid-boss. The first one I think is the most likely. Bombs on the other hand are supposed to be obstacles, but really aren't a challenge to maneuver through. I'd probably make them invisible, more scarsem=, and have a longer wait time to let the player register that there's an invisible bomb and run.
Now it's time for the things that I want, but I'll be fine without. I want a pickaxe selection screen where you can buy pickaxes for gold and other materials. This would be fun because they'd have an exchange where there might be a sword in the shop that allows fighting to be easier but mining takes longer, or a large pickaxe that makes your bunny move slower, but mines quicker or something. This would be a lot of work though so I wouldn't really expect it. Another thing I'd want is a world system, which allows you to get different ores per area. Like maybe there's a sea area where dirt is now sand but you can find seashells that you can use to upgrade your pickaxe. And instead of your torch running out, it'd be you running out of air. The last thing I'd want but isn't necessary is for it to become a mobile game. I would definitely be able to play it more and my progress would save, expecting that there'd be more rewards in the full version.
Alright, that's all I wanted to write. Tell me how I did since this was my first time doing it and I need feedback. Also, I'm not telling you to do these things, just saying things that came across my mind while playing and wanted to say. Oh, wait, for this reviewing thing I need a rating, uhhhhhh...
9.5 carrots out of 10.