Wow!! This game is surprisingly, very very well polished! I'm surprised why it hasn't been rated so much yet! Here are my 2 cents:
1) Amazing art, sound design and mechanics all flow cohesively really well. As a platformer, the controls are paramount and here - I think you nailed it very well! The jump feels good and just about right. The throwing and catching feels good too! I think you got off an AMAZING start and it's great!
2) Very fun, inventive puzzle game. Having to juggle between timelines and throw pass to your alternate selves is quite brain-busting. I admittedly never managed to finish past a level as it got too hard but that's actually a plus in my book - difficult puzzles are the ones worth solving!
3) Back in terms of art, your art direction is amazing - great spritework from the football to the simple background, I think the game as a whole looks amazing. If you ported this into a mobile game with a much more deeper tileset, it would look just fine!
Your game has a lot of polish added and with a simple mechanic in mind, it looks good! Even the screen transitions in-between, you look like a veteran developer just from this prototype alone! Looking forward to see if you take this much further!