Awesome submission. I got all the collectables and all 3 kisses! I didn't get a confirmation screen or anything, so I am not sure if I missed anything. The jump and double jump are awesome, but I feel like the game really lacked a sprint since it is kind of slow to move around without it. Overall, great job!
Edit: Also, I played it using my PlayStation controller. The keyboard controls are there, but you really need a controller if you want to have a smooth experience.