No particular reason, just bad coding. I also discovered if you add gravity to y velocity after setting y velocity to zero when on the floor the player will slide down a slope.
Day 4: I have implemented loading levels and suspending player input. I have also implemented a rudimentary main menu and restructured my files ie. put levels and and related scripts in a folder rather than in the root directory.
Day five: I have implemented a background by creating a gradient of color, which is then repeated using the parallax background node I also decided to replace the player sprite placeholder with a snowman, which is flipped horizontally when pressing right or left.
hey that looks awesome! i can't wait to see the snowman in motion! also the parallax background sounds really cool. if you have time it could be cool to add something like parallax trees or clouds or something too.