Not really a lot to vote on here. The controls are smooth and the textures (ignoring the minecraft block lol) are nice. You can just walk off the block and fall through each level for an easy win though, Also, if you miss the next level trigger you softlock the game.
Nice job! Game is very easy. You can finish it, if you fall to random place on the screen. You need to put some negative blocks for more challenge.
Screenshot at Apr 26 23-53-36.png
Congrats on your first game jam! There was a ton of 'game' here but it is a finished product. It has a start and a goal, and that is a great first step. Take this as a learning experience and work on your skills and you'll be able to produce much bigger things in the future. Best of luck!