This is a very short game I made while learning more about programming.
The game consists of just a few rooms, some power ups, and a boss fight. Hearts will restore health. Coins don't do anything.
The core mechanics are around jumping and clinging to walls. During the boss fight, you will need to utilize this while throwing shurikens. You cannot turn around once you've started a jump.
I tried to squeeze in a notification system toward the end to create a small tutorial area. Not sure if it actually helps much, but it's there.
Full play through video here if you're interested: https://www.youtube.com/watch?v=CYfjSiYwGfY