Congrats on getting your first game done! Nice concept and I love the sprite for the guy. The problem I'm running into is that when I want to see the white blocks to determine my next jump, it makes the black platform I'm standing on disappear, so I immediately fall and can't see the layout of the level. I managed to jump in place and time the button press to see, but maybe if the invisible blocks were just translucent so you could still tell where they are, it would make the gameplay smoother! Still, awesome work!