That's a cute style and nice palette! I'd call it "Something Undertale-like, only with neat drawings" :D

You have a cool and smooth camera work but I felt betrayed when I jumped off a cliff and landed on an enemy which I didn't see :D

I think you could reposition camera to show upper platforms more to show player that they could reach it with their jump.

Also, you could add some UI with "exiting" from stations and chests. I pressed everything and then I figured out that I needed "Escape".

I suppose gml error in the end at the hitbox_dicer_obj was the opportunity to exit from the game :D

Maybe I was trying to be too practical and trying to minimize the failures by getting the whole dice together, and then I would already roll myself whatever I needed.

I really liked the style and music of the game. Your music was enjoyable and didn't bore me at all, well done!

Liked the concept, art and music in this one! I also appreciated the shown controls in-game. As others have already  mentioned, the dice mechanic feels redundant. Besides that, an aerial attack would have been great to deal with spideys. I think the the camera transition to next area could happen sooner without you getting too near the edge of the sceen. That way you don't have to dive in in to the unknown, possibly risking getting hit by moving enemies.

The game window didn't quite fit my screen and the edges of it got hidden. Options to change its size would be cool.

Good stuff! 

i like the art a lot, nice colour palette
though i think the double outline on the character was not that necessary because from what i saw the player is never on a bright background. 

one thing that probably really affected the amount of ratings you got is the fact that there was no way to play your game other than running the installer. it adds a lot of friction for something that should be as frictionless as it can. if it's possible, i would recommend making a web build next time. 

i liked the mechanic and being able to collect and place the dice items, but they didn't seem extra important to the gameplay, so the game might not fit the theme very well.
i feel like making the player movement more fluid and enabling players to attack midair would've been a good decision. 
i was going to complain about the movement speed but once i got the upgrade it actually made sense that it was slow, it added an incentive to upgrade it in the first place.

nice camera movement
cool enemies
quite the good tutorial!
good job!

Idea with gambling is nice, but it seems useless for this game. You don't need either deal more damage or jump higher or have more health. The game should have segments, where those abilities will make game easier.