Interesting game but damn I had to look at the game page for the controls to figure out how to do stuff, cause the game doesn't explain stuff (i saw your other reply where you said you didn't have time to add tutorials). the game is also kinda glitchy, like the jump doesn't reset sometimes when you hit the ground for example.

So, a few notes. The jump only reset if the middle of the box sprite hit the ground, which wasn't always the case. On the second level, I got stuck right before the end because I jumped and landed in the gap between the bridge and the ground and then could move. I also found it weird how the mechanics weren't actually explained? I spent like 3 mins on level 2 because I didn't realize you could pick up the box, and then I spent another 3 minutes sitting there cause I didn't realize you could throw the box with momentum. Sound effects would be lovely and would add a lot to the game, and I think an end screen would be great, since winning only takes you back to stage 2. The time travel mechanic could also be explored more, but all in all I think you did a nice job so well done!