Things I liked:

• The introduction was nice and funny, and also the "I will shoot you" of the robots XD
• It was hilarious to me how the robots went after you and fell to the ground face down or on top of each other XD
• The camera movement was very smooth.
• The bullets bouncing off the walls was cool. I don't know if it made a difference gameplay-wise and I don't know if you made that detail on purpose, but it was cool.
• The two levels I played were very different from each other. I felt smart when I found the time machine in the first one, even though it was actually easy haha

Things I disliked:

• The movement of the character has too slow acceleration and deceleration. It felt right while I was flying, but when I was touching the ground it felt like I was sliding and I was the response to the controls was too slow.
• The aim just doesn't work. The bullet doesn't go towards the middle of the screen, but instead goes a bit towards the right. It's very difficult to aim correctly.
• Sometimes I don't know if I'm hitting the enemy or not. It looks as if the bullet went right through the robot but it's visible on top of it until it dissapears. It's weird.
• The second level has these pink buttons and I had no idea what I had to do there, mostly because I didn't have time to think about it because there was an army of robots right behind me while I was trying to solve a puzzle. I spammed E and managed to open it somehow, but it wasn't fun.
• The thing I disliked the most was that if I die, I have to restart from the beginning. That made me quit when the scientist killed me in the second level. The robots before the boss battle drained a lot of my HP while trying to solve the pink buttons puzzle and I had no idea if I was actually hitting the scientist or not. I also didn't know how he was attacking me, I couldn't see his bullets.

Quite fun to play with very interesting player controls. I couldn't however find anything to do with rewind other than some clocks to collect. Amazing job on the sound design though!