I had fun on this one.  The level design was really good overall.  I liked the part were you fell in the cave.  This needs a lot of polish but the game is fun.

I like the art, especially the princess at the end. It was also pretty conceptually well put together, I liked the cave section and the portals mixing up the environment/visual flow of the game.

I'd say that the biggest issue this game has is probably that the enemy hitboxes need to be shrunk. There's a sizeable space before the slime and the bat where the player will die, but the sprites look like they are not touching at all.

In any case, it's a nice little game you put together, nice job on completing the jam!

I really like the music in this one! Very bouncy and upbeat.
I think your game would benefit a lot from sound effects, there's not a lot of feedback for your inputs. Jumping, hitting enemies/obstacles, etc. all feel much more responsive and fair with an accompanying sound. 
I really like the fake-out jump that takes you underwater (underground?), that gave me a little scare.
I also like how you run right past the princess and get the sweet loot instead.
There are a few rough edges (especially the jump arc), but it's a cute, fun game!

Ah! Nice game! Really got me into hit! The concept of the character only walking in one direction and by itself, it's close to what I used on my game for #lowrezjam. Really nice and challenging game! Well done!

PS: Feel free to try my game out! Cheers!

Interesting game; fun; simple; be sure to check mine out!